College Physics (7th Edition)

Published by Pearson
ISBN 10: 0-32160-183-1
ISBN 13: 978-0-32160-183-4

Chapter 7 - Circular Motion and Gravitation - Learning Path Questions and Exercises - Exercises - Page 260: 12


a). $(4) 129^{\circ}$ is correct. b). $14408\,\,kms$

Work Step by Step

a). Both places are at the same latitude. Only longitudes are different. Hence, the smallest angular distance the fan has to travel $=151^{\circ}-22^{\circ}=129^{\circ}$. (4) is correct. b). $S=r\theta=6400 km \times \frac{129}{57.3}=14408kms.$
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