Essential University Physics: Volume 1 (3rd Edition)

Published by Pearson
ISBN 10: 0321993721
ISBN 13: 978-0-32199-372-4

Chapter 10 - Section 10.1 - Angular Velocity and Acceleration - Got It?: 10.1

Answer

c)

Work Step by Step

Since tangential acceleration is equal to $\alpha r$, we know that a constant angular acceleration means that there is a constant tangential acceleration. The only tangential acceleration that is constant is c). In addition, because radial acceleration equals $\frac{v^2}{r}$, when the velocity increases at a tangential rate, $a_r$ increases at an exponential rate.
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