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JEE Main Physics question

PhysicsLaws of MotionJEE Main

A uniform metal chain is placed on a rough table such that one end of the chain hangs down over the edge of the table. When one-third of its length hangs over the edge, the chain starts sliding. Then, the coefficient of static friction is

Answer: (D)

Solution

Weight of the hanging 1/3 portion = (1/3)W; this just equals the maximum

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Question ID VK-153420