Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 7 - Linear Momentum - Questions - Page 190: 21

Answer

Leaning back moves your center of mass, the heavy object, to be above your feet.

Work Step by Step

To keep your balance, your center of mass (CM) should be located above your feet. If you carry a heavy load in your arms, your CM shifts toward the load, moving in front of your body, possibly toppling you forward. You instinctively lean back to keep your CM above your feet.
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