A smooth rod PQ is rotated in a horizontal plane about its mid point M which is h 0 1 m vertically below a fixed point A at a

Question

A smooth rod PQ is rotated in a horizontal plane about its mid point M which is h 0 1 m vertically below a fixed point A at a constant angular velocity 14 rad s A light elastic string of natural length 0 1 m with elastic constant 1 47 Nicm has one end fixed at A and its other end attached to a ring of mass m 0 3 kg which is free to slide along the rod When the ring is stationary relative to rod then find cosine of angle made by string with vertical A IM

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