Answer
$t=0.432 s$
$ \alpha=67.6 rad/s^2$
Work Step by Step
$\theta$=$\theta0-\omega0*\alpha/2*t^2$
$4*\Pi=\alpha/2*(0.610)^2$
$==> \alpha=67.6 rad/s^2$
a) $2*\Pi=\alpha/2*t^2$
$==> t=0.431$s
University Physics with Modern Physics (14th Edition)
by Young, Hugh D.; Freedman, Roger A.
Published by
Pearson
ISBN 10:
0321973615
ISBN 13:
978-0-32197-361-0
Chapter 9 - Rotation of Rigid Bodies - Problems - Exercises - Page 298: 9.66
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