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NEET 2016 Physics question

PhysicsSystems of Particles and Rotational MotionNEET 2016

A disk and a sphere of same radius but different masses roll off on two inclined planes of the same altitude and length. Which one of the two objects gets to the bottom of the plane first?

Answer: (2)

Solution

For a body rolling without slipping down an incline of angle , , which is independent of the mass and radius. For a solid sphere : . For a disc $I =

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Question ID VK-091855