University Physics with Modern Physics (14th Edition)

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

Chapter 7 - Potential Energy and Energy Conservation - Problems - Discussion Questions - Page 228: Q7.21

Answer

See the graph below for the answer.

Work Step by Step

If the force remains zero with slight displacement this means that slope of the function U(x) remains zero. i.e The energy is constant in this small interval around x. For example, basketball is lying on the ground.
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