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 - Multiple Choice Questions - Page 258: 2


(a) both $r$ and $\theta$

Work Step by Step

The coordinate of any point can be represented as $(\mathrm{rcos} \theta, \mathrm{rsin} \theta)$ so the variables are both $r$ and $\theta$.
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