a wire of length 1m is fixed at one end has a sphere attached to it at the other end .the sphere is projected horizontally with a velocity of root9g.when it describes a vertical circle ,the ratio of elongations of the wire when the sphere is at top and bottom of the circle is
a wire of length 1m is fixed at one end has a sphere attached to it at the other end .the sphere is projected horizontally with a velocity of root9g.when it describes a vertical circle ,the ratio of elongations of the wire when the sphere is at top and bottom of the circle is










