A) \[\frac{\ell }{\sqrt{2}}\]
B) \[\ell \]
C) \[\frac{\ell }{2}\]
D) \[(\sqrt{2})\,\ell \]
Correct Answer: A
Solution :
Moment of inertia of system about point \[p\,\,=\,\,4m{{\left[ \frac{1}{\sqrt{2}} \right]}^{2}}\,\,=\,\,2m{{\ell }^{2}}\,\,and\,\,4\,m{{k}^{2}}\,\,=\,\,2m{{\ell }^{\text{2}}}\] \[\therefore \,\,k=\frac{\ell }{\sqrt{2}}\]You need to login to perform this action.
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