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MHT CET Physics question

PhysicsLaws of MotionMHT CET

When a disc is rotating with angular velocity , a particle situated at a distance of 4 cm just begins to slip. If the angular velocity is doubled, at what distance will be the particle start to slip? [MHTCET 2010]

Answer: (A)

Solution

Slipping starts when , so ; doubling gives

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Question ID VK-040802