A) \[\frac{\omega M}{M+m}\]
B) \[\frac{\omega (M-2m)}{M+2m}\]
C) \[\frac{\omega M}{M+2m}\]
D) \[\frac{\omega (M+2m)}{M}\]
Correct Answer: C
Solution :
In the absence of external torque, angular momentum remains constant. \[L=l\omega =l'\omega '\] or \[M{{R}^{2}}\omega =(M+2m){{R}^{2}}\omega '=\frac{\omega M}{M+2m}\] Hence, the correction option is [c].You need to login to perform this action.
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