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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Two solid cylinder P and Q of same mass and same radius start rolling down a fixed inclined plane from the same height at the same time. Cylinder P has most of the mass concentrated near its surface, while Q has most of its mass concentrated near the axis. Which statement (s) is (are) correct? [IIT JEE 2012]

Answer: (D)

Solution

P has the larger moment of inertia, so is smaller for P: Q reaches first (a wrong), P has smaller

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Question ID VK-040587