Q.
Two masses each of mass M are attached to the end of a rigid massless rod of length L. The moment of inertia of the system about an axis passing centre of mass and perpendicular to its length is
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a
ML24
b
ML22
c
ML2
d
2ML2
answer is B.
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Detailed Solution
The moment of inertia of the system about the given axis isI = M(L2)2+M(L2)2 = ML24+ML24 = ML22
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