College Physics (4th Edition)

Published by McGraw-Hill Education
ISBN 10: 0073512141
ISBN 13: 978-0-07351-214-3

Chapter 4 - Multiple-Choice Questions - Page 147: 18


The correct answer is: (b) equal to $g$

Work Step by Step

The correct answer is: (b) equal to $g$ At the top, the force of air resistance is zero because the velocity is zero. The only force acting on the ball is the gravitational force. We can find the acceleration: $\sum F = ma$ $mg = ma$ $a = g$ The magnitude of the acceleration is equal to $g$
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