Physics for Scientists and Engineers: A Strategic Approach with Modern Physics (3rd Edition)

Published by Pearson
ISBN 10: 0321740904
ISBN 13: 978-0-32174-090-8

Chapter 12 - Rotation of a Rigid Body - Exercises and Problems - Page 350: 39


(a) -$\hat{j}$ (b) 0

Work Step by Step

(a) $\hat{i}\times (\hat{i}\times \hat{j})= \hat{i}\times (\hat{k})= -\hat{j}$ (b) $(\hat{i}\times \hat{j})\times \hat{k}= (\hat{k})\times \hat{k}= 0$
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