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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A cockroach is moving with velocity in an anticlockwise direction on the rim of a disc of radius and mass . The moment of inertia of the disc about the axis is and it is rotating in a clockwise direction with an angular velocity . If the cockroach stops, the angular velocity of the disc will be

Answer: (C)

Solution

Angular momentum conservation (disc clockwise, cockroach anticlockwise, about the common

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Question ID VK-159017