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JEE Main Physics question

PhysicsLaws of MotionJEE Main

A coin placed on a gramophone record flies off when the rotational speed is 50 rpm. If two such coins are placed one over the other on the same record, both of them will fly off when the rotational speed is

Answer: (D)

Solution

The slipping condition is independent of mass, so stacking a second identical coin

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Question ID VK-157727