A) \[\frac{1}{12}M(6{{R}^{2}}+{{L}^{2}})\]
B) \[\frac{1}{12}M(18{{R}^{2}}+{{L}^{2}})\]
C) \[\frac{1}{3}M(6{{R}^{2}}+{{L}^{2}}+3LR)\]
D) None of the above
Correct Answer: C
Solution :
Moment of inertia of the racket above the given axis \[I={{I}_{ring}}+{{I}_{rod}}\] \[=M{{R}^{2}}+\frac{1}{2}M{{I}^{2}}+\frac{1}{4}M{{I}^{2}}+M{{R}^{2}}+MIx\] \[=\frac{24M{{R}^{2}}+4M{{I}^{2}}+12MIR}{12}\] \[=\frac{1}{3}M(6{{R}^{2}}+{{I}^{2}}+3IR)\]You need to login to perform this action.
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