Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 8 - Reading Check Questions (Comprehension): 13

Answer

The lever arm is the shortest distance between the applied force (i.e., the line along which the force acts) and the rotational axis.

Work Step by Step

This is discussed on page 139, and examples are shown in Figures 8.19-8.20.
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