A) \[\omega M/(M+m)\]
B) \[\omega M/(M+2m)\]
C) \[\omega (M-2m)/(m+2M)\]
D) \[\omega (M+2m)/M\]
Correct Answer: B
Solution :
As on torque is acting on the system, so from law of conservation of angular momentum, Initial angular momentum= final angular momentum i.e.,\[M{{r}^{2}}\omega =(M+2m){{r}^{2}}\omega \]\[\Rightarrow \]\[\omega =\frac{M\omega }{(M+2m)}\]You need to login to perform this action.
You will be redirected in
3 sec