A) \[\frac{21}{5}M{{R}^{2}}\]
B) \[\frac{2}{5}M{{R}^{2}}\]
C) \[\frac{5}{2}M{{R}^{2}}\]
D) \[\frac{5}{21}M{{R}^{2}}\]
Correct Answer: A
Solution :
\[{{I}_{YY}}={{({{I}_{P}})}_{YY}}+{{({{I}_{Q}})}_{YY}}\] \[=\frac{2}{5}M{{\left( \frac{R}{2} \right)}^{2}}+\left\{ \frac{2}{5}M{{\left( \frac{R}{2} \right)}^{2}}+M\,{{(2R)}^{2}} \right\}\] \[=\frac{21}{5}M{{R}^{2}}\]You need to login to perform this action.
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