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A dogruns frompoints $A$ to $B$ to $C$ in 3.0 s. (See Figure $2.41 . )$ Find the dog's average velocity and average speed over this $3-$ second interval.
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Physics 101 Mechanics
Chapter 2
Motion along a Straight Line
Physics Basics
Motion Along a Straight Line
Motion in 2d or 3d
Newton's Laws of Motion
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let the positive extraction Toby doors slide So we have X day goingto meter xB seven meter next scene, six meter. So the average velocity it is, let's call it the a V slash X is equal. Do then X over lt This is a control XL minus X a over identity. So average velocity is the rate of change Off displacement addressed it to time. So we have $62 minus to me, done over two seconds. And this gifts the average for not scared to be called 1.3 meters per second average speed okay, is given by from it Scarlett. So please let's call it speed average. So spirit is given by the object's distance. Travelled over time on just a sea Cueto force last one less one me over two seconds and says he's going to do cool meat off the second. Now notice that the average speed is greater than the magnitude ofthe the average velocity. This is almost always true because average velocity is given by the rate of change of displacement of time, and displacement is the shortest distance Javert, so displacement should fall always. The less Stan are called distance. This means that the average velocity should also be less than on equal do average speed
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