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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A body has rotational energy by virtue of its motion is 1000 J has an angular speed of 20 rad/sec in anti clock wise direction. The body has rotational inertial about the axis is :

Answer: (B)

Solution

gives ; 20, 2.5 and 2

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Question ID VK-040352