Essential University Physics: Volume 1 (4th Edition)

Published by Pearson
ISBN 10: 0-134-98855-8
ISBN 13: 978-0-13498-855-9

Chapter 12 - Exercises and Problems - Page 221: 14


(a) $\tau=(\frac{L}{2})mg$ (b) 0 (c) $\tau=(\frac{L}{4})mg$

Work Step by Step

We know that (a) $\tau=r\times F$ $\implies \tau=(\frac{L}{2})mg$ (b) $\tau=r\times F$ $\implies \tau=(0)mg$ $\tau=0$ (c) $\tau=r\times F$ $\implies \tau=(\frac{L}{4})mg$
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