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 7 - Newton's Third Law - Conceptual Questions: 11

Answer

The reading on the scale will be 5 kg.

Work Step by Step

Consider the string attached to the 5-kg mass below the scale. Since the 5-kg mass is at rest, the string has a tension equal to the weight of the 5-kg weight. The scale is being pulled with this amount of tension. Therefore, the reading on the scale will be 5 kg.
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