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 9 - Work and Kinetic Energy - Stop to Think 9.2 - Page 212: 1

Answer

The work done is positive.

Work Step by Step

The force (gravity) on the rock and the displacement (direction of travel) is in the same direction and kinetic energy is gained.
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