A) \[\frac{2M\omega }{M+2m}\]
B) \[\frac{(M-2m)\omega }{M+2m}\]
C) \[\frac{M\omega }{M+2m}\]
D) \[\frac{(M+2m)\omega }{M}\]
Correct Answer: C
Solution :
As \[L=I\omega =\] constant. Therefore, \[{{I}_{2}}{{\omega }_{2}}={{I}_{1}}{{\omega }_{1}}\] or \[{{\omega }_{2}}=\frac{{{I}_{1}}{{\omega }_{1}}}{{{I}_{2}}}\] \[=\frac{M{{K}^{2}}\omega }{(M+2m){{K}^{2}}}=\frac{M\omega }{M+2m}\]
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