JEE Main Physics question

PhysicsLaws of MotionJEE Main

An object placed on a rotating horizontal disc begins to slip when it is at a distance of cm from the axis. If the angular velocity of the disc is doubled, the object will begin to slip at a distance from the axis of

Answer: (A)

Solution

Slipping begins when the required centripetal force exceeds the limiting friction: , i.e.

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Question ID VK-157593