Physics Fundamentals
Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 2, Problem 3P

(a)

To determine

The average velocity of the racer.

(b)

To determine

The average acceleration of the racer.

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A motorist drives south at 10.0 m/s for 3.00 min, then turns west and travels at 15.0 m/s for 2.00 min, and finally travels northwest at 20.0 m/s for 1.00 min. For this 6.00-min trip, find the average velocity. Let the positive x axis point east.
Compute your average velocity in the following two cases: (a) You walk 90.4 m at a speed of 1.98 m/s and then run 90.4 m at a speed of 3.80 m/s along a straight track. (b) You walk for 1.00 min at a speed of 1.98 m/s and then run for 1.71 min at 3.80 m/s along a straight track. (a) Number Units (b) Number Units
An object starts from rest and accelerates uniformly in a straight line in the positive x direction. After 13.6 seconds, it’s speed is 64.0m/s. What is the average velocity (in m/s) of the object during the first 13.6 seconds.
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Position/Velocity/Acceleration Part 1: Definitions; Author: Professor Dave explains;https://www.youtube.com/watch?v=4dCrkp8qgLU;License: Standard YouTube License, CC-BY