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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A solid cylinder moving with constant speed reaches the bottom of an incline of 30°. A hollow cylinder of the same mass and radius, moving with the same constant speed , reaches the bottom of a different incline of angle . There is no slipping and both go through the same distance in the same time. is then equal to

Answer: (C)

Solution

This scenario requires both to have the same acceleration (same distance, same time, same initial speed): . For the solid cylinder () on 30°:

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Question ID VK-158768