University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 6 - Work and Kinetic Energy - Problems - Discussion Questions - Page 193: Q6.5


Yes, but only if the object’s kinetic energy doesn’t change.

Work Step by Step

If an object is moving in a circle at constant speed, there is a net nonzero force acting on it at all times (the centripetal force, directed toward the center). However, its speed does not change. As seen in equation 6.13, the work-energy theorem, the total work on the object is the change in its kinetic energy. The total work done on the object is zero.
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