A) \[\sqrt{\frac{2}{3}}R\]
B) \[\frac{2}{3}R\]
C) \[\frac{5}{3}R\]
D) \[\sqrt{\frac{5}{3}}R\]
Correct Answer: D
Solution :
Moment of inertia of shell about a tangent \[I={{I}_{G}}+M{{R}^{2}}\] \[I=\frac{2}{3}M{{R}^{2}}+M{{R}^{2}}=\frac{5}{3}M{{R}^{2}}\] \[\therefore \] \[M{{K}^{2}}=\frac{5}{3}M{{R}^{2}}\] \[K=\sqrt{\frac{5}{3}}R\]You need to login to perform this action.
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