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Friction General Understanding

A mass m atta...

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A mass m attached to an ideal spring is released from natural length position of spring whose other end is connected to a block of mass M placed on rough surface of friction coefficient μ. Find μ for which the block of mass M does not slip 1 ) μ>2m/M 2) μ≤2m/M 3) μ≥ m/M 4)μ≤ m/M

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