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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A rod having length L, density D and area of cross-section A is rotating about the centre with velocity and perpendicular to its length. Its rotational kinetic energy is [MH-CET 2008]

Answer: (C)

Solution

and , so ; 1/3,

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Question ID VK-040548