Essential University Physics: Volume 1 (3rd Edition)

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

Chapter 11 - Exercises and Problems - Page 200: 22


Please see the work below.

Work Step by Step

(a) We know that $L=rmv$ $\implies [L]=[m][Kg][\frac{m}{s}]$ $[L]=kg.\frac{m^2}{s}$ (b) $L=\tau dt$ $L=rFdt$ $[L]=[m][N][s]$ (c) We know that $K=(\frac{1}{2})I\omega^2=(\frac{1}{2})I(\frac{L}{I})^2$ This simplifies to: $L=\sqrt{2KI}$ $[L]=\sqrt{[J]}\sqrt{kg.m^2}=kgm^2/s$
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