A) \[\frac{3}{2}m{{\ell }^{2}}\]
B) \[\frac{3}{4}m{{\ell }^{2}}\]
C) \[2m{{\ell }^{2}}\]
D) \[\frac{5}{4}m{{\ell }^{2}}\]
Correct Answer: D
Solution :
[d] \[{{I}_{AX}}=m{{(AB)}^{2}}+m{{(OC)}^{2}}\] \[=m{{\ell }^{2}}+m{{(\ell \cos \,{{60}^{o}})}^{2}}\] \[=m{{\ell }^{2}}+m{{\ell }^{2}}/4=5/4m{{\ell }^{2}}\]You need to login to perform this action.
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