Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 2 - Describing Motion: Kinematics in One Dimension - Problems: 26

Answer

The average acceleration is 3.67 $m/s^2$ and the time it takes is 3.13 seconds.

Work Step by Step

$a = \frac{v^2-v_0^2}{2x} = \frac{11.5^2}{2\times18.0} = 3.67 ~m/s^2$ $t = \frac{v-v_0}{a} = \frac{11.5}{3.67} = 3.13 ~s$ The average acceleration is 3.67 $m/s^2$ and the time it takes is 3.13 seconds.
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