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 12 - Rotation of a Rigid Body - Exercises and Problems - Page 332: 40

Answer

The torque on the particle about the origin is $(-50~\hat{k})~N~m$

Work Step by Step

We can find the torque on the particle about the origin as: $\tau = r\times F$ $\tau = (5\hat{i}+5\hat{j})~m\times (-10~\hat{j})~N$ $\tau = (-50~\hat{k}+0)~N~m$ $\tau = (-50~\hat{k})~N~m$ The torque on the particle about the origin is $(-50~\hat{k})~N~m$.
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