Answer
$\vec{L} = mr^2 \vec{\omega}$
Work Step by Step
We know that $\omega r =v$ and that $\vec{\omega}$ is in the k direction. Thus:
$\vec{L} = mvr\hat{k} = mr^2 \omega \hat{k} = mr^2 \vec{\omega}$
Essential University Physics: Volume 1 (3rd Edition)
by Wolfson, Richard
Published by
Pearson
ISBN 10:
0321993721
ISBN 13:
978-0-32199-372-4
Chapter 11 - Section 11.3 - Angular Momentum - Example - Page 192: 11.1
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