A) \[Zero\]
B) \[0.125\,\,kg\]
C) \[0.5\,\,kg\]
D) \[0.25\,\,kg\]
Correct Answer: D
Solution :
Key Idea: In the absence of external torque angular momentum is conserved. The radius of gyration \[\text{mg sin a}-{{f}_{\text{k}}}=ma\] of a body about a given line is defined as \[{{f}_{\text{k}}}\] Where, \[{{f}_{K}}=\mu \,R=\mu \,\,mg\,\,\cos \,\,a\] is its moment of inertia and \[\therefore \] is its total mass. \[mg\,\,\sin \,\,a-\mu mg\,\,\cos \,\,a=ma\] \[\Rightarrow \] \[a=g\left( \sin \,\,a-\mu \,\,\cos \,\,a \right)\] \[N\] \[N\] \[35\mu A\]You need to login to perform this action.
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