Circular Motion

A body of mass 200 gram is tied to a spring of spring constant \(12.5 \mathrm{~N} / \mathrm{m}\), while other end of spring is fixed at point '\(O\)'. If the body moves about '\(O\)' in a circular path on a smooth horizontal surface with constant angular speed \(5 \mathrm{~rad} / \mathrm{s}\) then the ratio of extension in the spring to its natural length will be