A body of mass m is tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity and elongation in the spring is 1 cm. If the angular velocity is doubled, the elongation in the spring becomes5 cm. The original length of spring is

A body of mass m is tied to one end of a spring and whirled round in a

1.	A body of mass m is tied to one end of a spring and whirled round in a horizontal plane with a constant angular velocity and elongation in the spring is 1 cm. If the angular velocity is doubled, the elongation in the spring becomes5 cm. The original length of spring is
Answer» 13 cm 14 cm 15 cm 16 cm Answer :C