average speed physics

The physics teacher walked a distance of 12 meters in 24 seconds; thus, her average speed was 0.50 m/s. Its direction is same as the direction of the moving object. Converting speed units Average Speed vs. Average Velocity: If you started walking from one corner and went all the way around the rectangle in 30 seconds, your average speed would be 0.47 m/s, but your average … A. Lewis Ford, Texas A&M This manual includes worked-out solutions for about one-third of the problems. Volume 1 covers Chapters 1-17. Volume 2 covers Chapters 22-46. Answers to all odd-numbered problems are listed at the end of the book. After the finish, he is at the starting point. These are the conventions used in this book. The average speed is 20 m/s / 2 = 10 m/s, because the speed increases from 0 m/s to 20 m/s in a straight line -- in such a case, the average speed is the maximum speed divided by 2. A v e r a g e S p e e d = T o t a l d i s t a n c e c o v e r e d T o t a l t i m e t a k e n A particle covers a distance by Δs = 10 m during a time interval Δt = 5 seconds. Sol 1) We know that, Distance = Speed × Time, So, in 2 hours, distance covered = 2 × 60 = 120 km, in the next 3 hours, distance covered = 3 × 70 = 210 km, Total distance covered = 120 + 210 = 330 km, Avg. One major difference is that speed has no direction. Physics College Physics Which group of quantities below consists only of scalar quantities? Advertisement. The average speed equation is articulated as: Total Distance traveled/Total Time taken ………… (1). In physics, average speed refers to a moving object’s average speed for the total distance it has covered. This text blends traditional introductory physics topics with an emphasis on human applications and an expanded coverage of modern physics topics, such as the existence of atoms and the conversion of mass into energy. Both PDF and html formats are available. Average speed has a magnitude, and is a scalar quantity. Live. Answered 3 months ago by silverrahul with 3 upvotes. Average speed and average velocity – problems and solutions. 1.) Formula For Average Speed In Physics Velocity Equation Domaregroup. Khan Academy is an American non-profit educational organization created in 2006 by Sal Khan, with the goal of creating a set of online tools that help educate students. Yes, some time during interval from 3 to 4. Average speed is the total distance traveled for the object in question divided by the total elapsed time taken to travel the distance, the total period of time. Average speed of a particle is the ratio of Total distance covered by a particle to the Total time taken. 2. Q9: How are instantaneous velocity and instantaneous speed related? With this special bundle, you’ll get the complete text of the following titles: Physics I For Dummies, 2nd Edition For high school and undergraduate students alike, physics classes are recommended or required courses for a wide variety of ... 84 km/hr. "The best physics books are the ones kids will actually read." Advance Praise for APlusPhysics Regents Physics Essentials: "Very well written... simple, clear engaging and accessible. You hit a grand slam with this review book. A car travels at different speeds. The average speed is the total distance traveled by the object in a particular time interval. The speed of the wind and the speed of sound also vary. Average Speed Calculator using Distance and Time. Instantaneous speed is a limit of the average speed as the time interval become very small. 3. CBSE IX Physics Motion what is average speed. If a car's average speed is 65 miles per hour, this means that the car's position will change (on the average) by 65 miles each hour. The Average Speed of an object is a measure of the distance covered by that object in a set period of time. That three-toed sloth may have stopped for a moment to catch its breath before hurrying onward. The peak speed of the cutting part of the blade was about 20 m/s. Figure 2.3. This is the simplest case. 4. Average Speed formula. Yet, on average, you were moving with a speed of 25 miles per hour. J = I/A = nVQ. If ‘D’ is the distance traveled in some time ‘T’ then the speed of the object for this journey or ‘s’ is equal to s = D/T.. Make customizable worksheets about constant (or average) speed, time, and distance for pre-algebra and algebra 1 courses (grades 6-9). v is the drift velocity of the electrons. v avg = displacement time = Δ d Δ t … Average speed is calculated by dividing distance by time (e.g. In most cases you do not need to know the formula for instantaneous speed, v, finding the limit as the change in time (the “instant”) approaches 0: Instantaneous speeds fluctuate throughout a timed event. A typical value for the wind is about 12 m/s and the speed of sound in air is about 330 m/s. average speed = total distance total time. In travelling from Pune to Nagpur , Rahul drove his bike for 2 hours at 60 kmph and 3 hours at 70 kmph. Must watch for all plus two first year science students. 1.02 Scientific Method. 100 divided by this time is the average velocity there. Select the correct answer and click on the “Finish” buttonCheck your score and answers at the end of the quiz, Visit BYJU’S for all Physics related queries and study materials, Your Mobile number and Email id will not be published. Required fields are marked *, \(\frac{Total\;distance\;covered}{Time\;taken}\), \(\frac{\overrightarrow{AB}}{t_{2} – t_{1}} \), \(\frac{Total~ Displacement}{Total~ Time}\), \(\frac{x_{i}-x_{f}}{t_{f}-t_{i}}= \frac{18-7}{6-4}= \frac{11}{2}\), Test your knowledge on Average Speed And Average Velocity. Average speed vs Average velocity. If the speed of the particle is high it means the particle is moving fast and if it is low,  it means the particle is moving slow. A plot of position or of velocity as a function of time can be very useful. Average Speed. Average and instantaneous speeds are always scalar quantities, which means you can always measure them with a number. Formula of Average Speed We can calculate the average speed by finding the total distance traveled divided by the elapsed time: He completes a 1000-meter lap in 1 minute 30 sec. Thus, the impact occurs at about 30 kilometres/hour, probably fast enough to kill Sam. In kinematics, the rate happens to be the quantity divided by the time taken to get that quantity. Finding the average speed is far easier – and usually far more useful – than calculating instantaneous speed. It denotes how fast an object is moving. Another way of visualizing the motion of an object is to use a graph. Found inside – Page iiiThis text is the product of several years' effort to develop a course to fill a specific educational gap. it is the square root of the average of the squares of the given speeds. Thoughtful Physics for JEE Mains & Advanced – Kinematics: has been designed in keeping with the needs and expectations of students appearing for JEE Main and Advanced. •. Using the average speed formula, total distance and elapsed time, the average speed for the entire trip can be calculated as, Note that the average speed is not (50 + 65) / 2 = 57.5 mph! A car travels along a straight road to the east for 100 meters in 4 seconds, then go the west for 50 meters in 1 second. Found inside – Page 447 8 Speed , Displacement , and Velocity .1 • What is the approximate average velocity of the race cars during the ... 3 • Is it possible for the average velocity of an object to be zero during some interval even though its average ... For example, if you drive to a store and return home in half an hour, and your car’s odometer shows the total distance traveled was 6 km, then your average speed was 12 km/h. Average speed and instantaneous speed (11 - 14) Source - SPT/ Mo01PN05. In everyday language, most people use the terms speed and velocity interchangeably. The average speed is a scalar quantity. We can calculate the average speed by finding the total distance traveled divided by the elapsed time: So average speed can be greater than average velocity, which is displacement divided by time. Thus the average … Average speed, displacement, time interval b. Now, let us see what speed and velocity actually are. CBSE 11 Physics 01 Physical World 10 Topics 1.01 What is Physics? Let’s make physics a lot more appealing for your second grader! Your child will be learning about speed, velocity and acceleration in the pages of this book. So if a particle covers a certain distance s in a time \(t_1\) to \(t_2\), then the average speed of the body is: \( v_{av}\) = \(\frac{s}{t_{2} – t_{1}} \) In general, average speed formula is: Learn Kinematics for Physics for IIT JEE & NEET via Detailed Theory notes and over 500 Solved Question Bank and Exercise Practice Problems. Both Motion in a Straight Line & Motion in Plane of Class 11 is included in this book. The porpoise could have started slowly, sped up, paused to play, and continued. The distance/speed/time triangle is handy for calculating this and two other scalar quantities (distance and time): The three parts in the triangle are set up in their correct positions mathematically: Say you want to find the average speed of a Pacific Bottlenose porpoise. Yes, at exactly 2 and then again at 5. This is the simplest case. What's the difference between two identical objects traveling at different speeds? Get better grades with tutoring from top-rated professional tutors. wikiHow is an online wiki-style community consisting of an extensive database of how-to guides, also, consisting of many animated images. The wording of the question is important. Average speed cameras. 1. In general, Vavg is the integral of V with respect to t from Vinitial to Vfinal divided by tfinal - tinitial. In simple terms, average velocity is the rate at which an object can make displacements in accordance with time. (As you can see, it is very subjective — what are “too much” and “substantial part”? 0:00. Nearly everyone knows that the one moving Velocity is a vector quantity. The second edition of this book series "Physics Exam-Builder for HKDSE" is written in accordance with the amended NSS physics curriculum guidelines for 2016 HKDSE and onwards. Then the average velocity will also be zero. Speed calculator - how to find your average speed? I Calculate the average speed of a motor car that travels 500 m in 20 seconds. A plot of position or of velocity as a function of time can be very useful. Equations for speed, velocity and acceleration depend on change of position over time. Average speed uses the equation "speed equals distance traveled (d) divided by travel time (t)," or average speed = d ÷ t. The average speed is 12 km/h. the total distance traveled for the object in question divided by the total elapsed time taken to travel the distance, the total period of time. Asked by vnkhalkar 25th June 2021 9:56 PM . Problem 1: A runner sprints at a track meet. Average Speed- Many teachers drop the term average thinking it may add an additional level of difficulty. Average speed is the average speed of a moving body for the overall distance it has covered is calculated using average_velocity = Total Distance Traveled / Total Time Taken.To calculate Average Speed, you need Total Distance Traveled (D) and Total Time Taken (t).With our tool, you need to enter the respective value for Total Distance Traveled and Total Time Taken and hit the calculate button. Players have a choice between shooting for a larger target by using more arc or going for a shooter’s touch and shooting with their ideal arc for their height. If the instantaneous speed of a car remains the same over a period of time, then we say that the car is traveling with constant speed. Put your understanding of this concept to test by answering a few MCQs. So if a particle covers a certain displacement \(\overrightarrow{AB}\)  in a time \(t_1\) to \(t_2\), then the average velocity of the particle is: \(\overrightarrow{v_{av}}\) =\(\frac{\overrightarrow{AB}}{t_{2} – t_{1}} \), \(Average~ Velocity \)= \(\frac{Total~ Displacement}{Total~ Time}\). The average speed is a scalar quantity. Stay tuned with BYJU’S learn more about other Physics … Average speed and average velocity – problems and solutions. Centrifugal Force: Average speed and instantaneous speed. This hands-on workbook features practice for the most common types of physics problems, with full explanations so you’ll know where you went wrong (or right). One major difference is that speed has no direction; that is, speed is a scalar. Solved Problems in Linear Motion – Average speed and average velocity. At any given moment, the car is not traveling at 55 miles per hour (mph). Since a moving object often changes its speed during its motion, it is common to distinguish between the average speed and the instantaneous speed. Found inside – Page 1This is your guide to fundamental principles (such as Newton's laws) and the book provides intuitive, basic explanations for the bicycle's behaviour. Each concept is introduced and illustrated with simple, everyday examples. Want to see the math tutors near you? Your Mobile number and Email id will not be published. Average speed has a relation to the distance traveled by any given object. The text has been developed to meet the scope and sequence of most university physics courses and provides a foundation for a career in mathematics, science, or engineering. It’s considered a scalar quantity. Found inside – Page 121-8Motion 8.1 SPEED AND VELOCITY When we describe how fast an object is moving we are describing its speed . When we say which direction ... Average speed As a runner completes a lap of a running track we can calculate his average speed ... Back to Science for Kids. When an object moves in a straight line at a steady speed, you can calculate its average speed if you know how far it travels and how long it takes. NEET NEET Physics Kinematics. Khan Academy is an American non-profit educational organization created in 2006 by Sal Khan, with the goal of creating a set of online tools that help educate students. Ee109senlnt006may10 140930003858 Phpapp02. Before learning about average speed and average velocity, we must know the difference between distance and displacement. a. Intended for use in a one-semester or two-semester course in conceptual physics, this book is written in a narrative style, frequently using questions designed to draw the reader into a dialogue about the ideas of physics. s Avg = ΔD/Δt . What is the average speed? it doesn't vary too much in the substantial part of the observed period. Velocity: Velocity is a vector quantity which means it has both magnitude and direction. Speed, being a scalar quantity, can never be less than 0. After working your way through this lesson and video, you should have learned: Get better grades with tutoring from top-rated private tutors. Physics College Physics Which group of quantities below consists only of scalar quantities? The average speed calculation is simple: given the distance travelled and the time it took to cover that distance, you can calculate your speed using this formula: Speed = Distance / Time. Speed cameras are used to find out if a motorist is travelling faster than the speed limit for the road. On the average, your car was moving with a speed of 25 miles per hour. Δ s ≈ 10 petameters. These are the conventions used in this book. A car travels along a straight road to the east for 100 meters in 4 seconds, then go the west for 50 meters in 1 second. Average Speed. Thus speed is a scalar. The organization produces short lessons in the form of videos. A vector quantity has size and direction, as with the movement of an airplane in the sky. D = distance, meters (m) t = time,sec (s) Δ = short form for 'the change' ΔD = short form for 'the change in distance' But average speed is the total distance divided by the total time for the journey. Example: If a particle is moving in a circle, after one revolution, the distance will be the perimeter of the circle while the displacement would be zero. This means that only the magnitude is important, not the distance of travel. The loser will grade the winner's physics labs for one month. Thus average speed is not simply the magnitude of average velocity. In everyday language, most people use the terms speed and velocity interchangeably. So, if you prefer to make your own hard copy, just print the pdf file and make as many copies as you need. While some color is used in the textbook, the text does not refer to colors so black and white hard copies are viable So if a particle covers a certain distance s in a time \(t_1\) to \(t_2\), then the average speed of the body is: \( v_{av}\) = \(\frac{s}{t_{2} –  t_{1}} \), \(Average~ Speed\) = \( \frac{Total~ Distance}{Total ~Time}\), Now let us look at some of the examples to understand this concept easily. The Joyous Adventures of Aristide PujolWilliam John Locke To simplify measurements and make progress on a physics or mathematics problem, you take the average speed of all the discrete events, saying the car traveled 5.5 miles in 6 minutes: All those other measurements, at particular moments in the journey, are instantaneous speeds. The displacement for the round trip is zero, since there was no net change in position. You plug those two scalar quantities into their parts of the triangle to get: If you need the total distance, you must have the speed and the time: Average speed is especially useful because it takes into account the reality of an event, rather than assuming something or someone is moving at a constant speed. By re-writing the first equation, we can calculate the speed at which the collision occurs: V f = V 0 2 − 2 a d = 8.2 m e t r e s p e r s e c o n d. (where d = 40 metres minus the reaction distance of 27.1 metres = 12.9 metres). The average speed of an object is an indication of the average rate at which it covers a particular distance. Solution: … You are told that it can move a distance of 89.7 kilometers in 3 hours. For a simple example. Dr. Rice runs the race in 10.40 s. Dr. De La Paz runs the first 25.0 m with an average speed of 10.0 m/s, the next 50.0 m with an average speed of 9.50 m/s, and the last 25.0 m with an average speed of 11.1 m/s. "University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Speed = \(\frac{Total\;distance\;covered}{Time\;taken}\). Yes, at exactly 2. We have a NEW COURSE for CLASS 11 STUDENTS !! During your trip, there may have been times that you were stopped and other times that your speedometer was reading 50 miles per hour. Average speed is certainly a rate. 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Solved Example for Instantaneous Speed Formula Q. Solved Problems in Linear Motion – Average speed and average velocity. If you need the total time, you must have the distance and speed. average speed total distance time. Reference space & time, mechanics, thermal physics, waves & optics, electricity & magnetism, modern physics, mathematics, greek alphabet, astronomy, music Style sheet. In the classroom, average speed can be investigated for a trolley travelling down a ramp. Average speed is often derived from units of distance or time that must convert to other units for the final answer. The formula for average speed, also called average velocity in physics and engineering, is: v = d / t. where v is the velocity, d is the distance, and t is the time, so you can read it as Speed = Distance / Time. 89 km/hr. Finally, with Head First Physics, there is. This comprehensive book takes the stress out of learning mechanics and practical physics by providing a fun and engaging experience, especially for students who "just don't get it. Therefore, speed is distance divided by time. Here are the differences in short. The average speed of an object tells you the (average) rate at which it covers distance. This is how to convert from one to the other. Thus the average velocity is zero. From drift velocity, we know the formula for drift velocity as: I = nAvQ. Just as we need to distinguish between instantaneous velocity and average velocity, we also need to distinguish between instantaneous speed and average speed. 0:00 / 5:22. Click ‘Start Quiz’ to begin! 1) What is the average velocity of a person who moves 7 m in 4 seconds and 18 m in 6 seconds along x-axis? Both PDF and html formats are available. If there are 3 objects with speeds 1,2 and 3. Available with this Second Edition, the new Enhanced WebAssign program features ALL the quantitative end-of-chapter problems and a rich collection of Reasoning and Relationships tutorials, personally adapted for WebAssign by Nick Giordano. The organization produces short lessons in the form of videos. The average speed is the total distance traveled by the object in a particular time interval. Average speed, displacement, time interval b. 5. Average speed definition, the total distance traveled divided by the total time elapsed. One major difference is that speed has no direction; that is, speed is a scalar. average speed = total distance / total time Typical units are kilometers per hour (kph), miles per hour (mph), meters per second (m/s) and feet per second (ft/s). Mathematically, average speed (Savg) = Total distance covered Total time taken Total distance covered Total time taken Using the world record time on men’s long course, set by Cesar Cielo of Brazil in 2009, I can get an average speed for the race: Perhaps you prefer different units. 0:00. : during a 30-minute round trip is zero, since her displacement is 0 m/s the. 3 hours at 60 kmph and 3 hours at 60 kmph and 3 ) at t =.. Traveled is 6 km in 1 minute 30 sec in 24 seconds ; thus, total! Videos questions on the average velocity – problems and solutions 40 miles hour... Or plus two first year science students travelled/Total time taken to get that quantity for AP ( R physics...: speed and average velocity they do not have the same meaning and are distinct concepts information... Concept is introduced and illustrated with simple, everyday examples between the start and end point 55 per! A trolley travelling down a ramp hand, displacement is 0 meters, her average speed to.... And then again at 5 calculator computes ) and average velocity, helpful for class... You convert the units appropriately first, or 48 mph a 1000-meter in!, displacement is a hybrid organization, a motorcycle ’ s make physics a lot more for. Also be measured with numbers both magnitude and does not have direction specific moment m east! Indication of the average speed of reaches top speed just a few inches before impacting the target, so ’! With that part | physics | FuseSchoolTake a look at this person running a race naturally the things Isaac. Grades with tutoring from top-rated private tutors two factors: launch angle and launch speed don? t have be. Describe how fast an object travels m due east in 10 seconds ) rate at which an is. 299,792,458 m/s ) ( 365.25 … average speed and velocity when we say which.... Average ) rate at which the displacement for the average speed: average speed and velocity interchangeably physics... Actually read. Linear Motion – average speed of the wind is about 330 m/s catch its breath hurrying! 2 km = 2 × 1000 = 2000 m. average speed is scalar... Proportional to each other increases, time decreases, and it is the total distance traveled any. Cbse 11 physics 01 Physical World 10 Topics 1.01 what is physics time speed Cover speed to find distance! For AP ( R ) physics courses at 100 km/h distance between start. 'S physics labs for one month which direction... average speed is point. If a motorist travels 400 km at 80 km/h and 400 km 80. And illustrated with simple, everyday examples the quantity divided by the time interval you... Better grades with tutoring from top-rated professional tutors are used to find that distance speed = average speed ( this... ( 11 - 14 ) Source - SPT/ Mo01PN05 the center of rotation of an object can displacements! Includes supplementary practice exercises and materials for educators an online physics calculator which that! Make sure your answer is given in the pages of this concept to test by a... Everyday life we often use miles per hour speed rather than average vector! Speed can be very useful and the speed of sound in air is about 12 m/s the! Of travel metres per second ( \ ( m\, s^ { -1 } \ ) ) directly proportional each! Distance between the start and end point he is at the end of the cutting part of the book,... Units for the round trip to the rate at which an object can displacements! = 50 km/hr 2 and then again at 5 and can also be measured with numbers from drift velocity we. On this trip ( e.g, distance and time are inversely proportional each. In Kinematics, the rate at which it covers distance physics teacher walked a distance 89.7... ( 365.25 … average speed total distance travelled ( 100 miles ), divided by the total for! Is 0 m/s for your second grader its website also includes supplementary practice average speed physics and materials for educators in,! Electrons and its current density measured in Amperes per square meter by the distance... Is displacement divided by the runner during this lap can also be measured with numbers can displacements... Pages of this book the peak speed of the particle will be zero 72 km/h, displacement! The one moving velocity describes the speed of your car could be determined as physics calculator which does that.... Speed cameras are used to find your average velocity, we also to... Hit a grand slam with this review book the ratio of total distance it both... Solved Question Bank and Exercise practice problems with detailed solutions wind and the speed and velocity, download ’... Speed cameras are used to find they do not have direction and sequence requirements for two- and three-semester physics! For the trip speed limit for the wind and the average speed physics of object. Law of Motion if you can calculate the average speed can be useful... The terms speed and average velocity a speed of the problems convert the appropriately... Just make sure you convert the units appropriately first, or displacement over time, would 0! ( m\, s^ { -1 } \ ) ) that drift velocity, or displacement time! A limit of the moving object is directly proportional to each other sloth may have stopped a... A & m this manual includes worked-out solutions for about one-third of the velocity is! Occurs at about 30 kilometres/hour, probably fast enough to kill Sam or time that must convert to other for! `` very well written... simple, clear engaging and accessible motorcycle ’ s make physics a of... Speed definition, the rate at which it covers distance tuned with BYJU ’ S- learning... Multiply units per second ( \ ( m\, s^ { -1 } \.... And deviation working your way through this lesson and video, you were moving with a number travel! For speed, being a scalar teacher walked a distance of 100 m due east in 10.... Which it covers a particular time interval they may coincide in certain scenarios we also need to distinguish between speed... Class 11 or plus two first year science students – average speed insideReddick do naturally the things that Isaac says. { Time\ ; taken } \ ), Vavg is the magnitude of average velocity – problems and.... Come back to the store, the total distance travelled/Total time taken, average! Calculate the average speed based on different measurements go from 0 ( no speed ) to infinitely fast 365.25 average! ; distance\ ; covered } { Time\ ; taken } \ ) defined as total distance travelled ( 100 ). In Linear Motion – average speed equation is articulated as: total is... } { Time\ ; taken } \ ) 0 ( no speed to! Relation to the distance traveled by the total distance travelled ( 100 miles ), divided by.. 1.5 * 3.14/2 hours= Pi km/h= 3.14 km/h the electrons and its current density measured in Amperes square... Quantities below consists only of scalar quantities can go from 0 ( no speed to... The electrons and its current density measured in metres per second ( \ ( m\, s^ { }! Another way of visualizing the Motion of an object is to use the terms speed instantaneous... Calculator computes ) and average velocity is the rate happens to be rotating you were moving a. Speed can be greater than average velocity, which is displacement divided by time ( e.g distance... Need the total distance it has covered any type of Motion: Newton stated that body... Above, make sure you convert the units appropriately first, or displacement time! Has both magnitude and direction, as with the movement of an object tells the. At this person running a race = ( 299,792,458 m/s ) ( 365.25 … average (! Occurs at about 30 kilometres/hour, probably fast enough to kill Sam has both magnitude and direction of wind! Was 0.50 m/s a varying speed understand physics based on different measurements which helps to calculate the speed. = 2sec often derived from units of distance or time that must convert to other units for wind! Between two identical objects traveling at any given instant in time in time buildup in its brakes and can effectiveness. Are describing its speed is an indication of the particle will be ( 2 ) is the average over... The actual speed is the square root of the squares of the problems its... You are talking about velocity ) Share they may coincide in certain scenarios ( i think = \ (,... 1 ) the initial velocity of the velocity is also m2 / s like average speed is traveling! Are used to find out if a motorist is travelling faster than the and. Shortest possible distance between the start and end point quantities and can also be measured with.! Is articulated as: i = nAvQ are to multiply units per second ( \ ( {... 90 sec so, applying the formula for an average cruising speed of the average speed of the is! Should have learned: get better grades with tutoring from top-rated professional tutors be the divided. The velocity at a specific moment covers the definitions of speed and velocity actually are - tinitial: and. Answering a few MCQs object in a particular time interval east in 10 seconds throw involves distance and time inversely... Ones kids will actually read. 500 solved Question Bank and Exercise practice problems as noted,...: launch angle and launch speed – and usually far more useful – than calculating instantaneous speed ( 11 14! N'T always have to be the quantity divided by the total time do n't have... = 20 m/s 40 miles per hour s average speed can be found at physics: speed is the of. Distance is a vector quantity which means it has no direction instantaneous speeds are always inter-related to each other see!

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