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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A ring of mass 0.3 kg and radius 0.1 m and a solid cylinder of mass 0.4 kg and of the same radius are given the same kinetic energy and released simultaneously on a flat horizontal surface. They begin to roll as soon as released towards a wall which is at the same distance from the ring and cylinder. Which will reach the wall first?

Answer: (C)

Solution

For the ring , and for the cylinder ;

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Question ID VK-040487