One end of a spring of spring constant 80 Nm^(-1) and unstretched length of 30 cm is fixed at point A and the other end of the spring is fitted with a smooth ring of mass 300g as shown in the figure. The rings is allowed to slide on a horizontal rod fixed at a height of 40 cm. Initially the spring makes an angle of 60^(@) with the vertical and the system of spring and ring is released from rest. The speedof the ring when the spring becomes verticcal is _______ ms^(-1).

One end of a spring of spring constant 80 Nm^(-1) and unstretched leng

1.	One end of a spring of spring constant 80 Nm^(-1) and unstretched length of 30 cm is fixed at point A and the other end of the spring is fitted with a smooth ring of mass 300g as shown in the figure. The rings is allowed to slide on a horizontal rod fixed at a height of 40 cm. Initially the spring makes an angle of 60^(@) with the vertical and the system of spring and ring is released from rest. The speedof the ring when the spring becomes verticcal is _______ ms^(-1).
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