Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 4 - Forces and Newton's Laws of Motion - Focus On Concepts - Page 112: 20

Answer

(a) is not true.

Work Step by Step

Being in equilibrium means having no acceleration. An object with no acceleration can either be at rest or be moving at a constant velocity. So, when a certain object is in equilibrium, it is not always the case that the object is at rest. (a) is not true.
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