Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (4th Edition)

Published by Pearson
ISBN 10: 0133942651
ISBN 13: 978-0-13394-265-1

Chapter 2 - Kinematics in One Dimension - Exercises and Problems - Page 59: 9


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Work Step by Step

For a graph of velocity as a function of time, acceleration can be found as the slope of the graph. For the first 2 seconds, the velocity is unchanging/has a slope of $0$. Therefore the acceleration is also $0$. For the 3rd and 4th seconds, the slope is $1$ and found by taking the change in y and dividing that by the change in x $$ a=\frac{\Delta y}{\Delta x}$$
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