Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 8 - Rotational Motion - Problems - Page 222: 19

Answer

(a) $\theta = 46~rev/min^2$ (b) $\omega = 46~rpm$

Work Step by Step

(a) $\theta = \frac{1}{2}\alpha t^2$ $\alpha = \frac{2\theta}{t^2} = \frac{(2)(23~rev)}{(1.0~min)^2} = 46~rev/min^2$ (b) $\omega = \alpha t = (46~rev/min^2)(1.0~min) = 46~rpm$
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