One end of a light spring of natural length d and spring constant k=64N/m is fixed on a rigid wall and the other is attached to a smooth ring of mass m=1 kg which can slide without friction on a vertical rod fixed at a distance d=3m from the wall. Initially the spring makes an angle of 37^(@) with the horizontal as shown in fig. When the system is released from rest the speed of the ring when the spring becomes horizontal [sin37^(@) =3//5]

One end of a light spring of natural length d and spring constant k=64

1.	One end of a light spring of natural length d and spring constant k=64N/m is fixed on a rigid wall and the other is attached to a smooth ring of mass m=1 kg which can slide without friction on a vertical rod fixed at a distance d=3m from the wall. Initially the spring makes an angle of 37^(@) with the horizontal as shown in fig. When the system is released from rest the speed of the ring when the spring becomes horizontal [sin37^(@) =3//5]
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