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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A light meter scale has two point masses 2 kg, each fixed at its ends. If the system is rotated about its centre with an angular speed of 1/2 rad/sec. Its kinetic energy of rotation is :

Answer: (C)

Solution

and

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Question ID VK-040380