Circular Motion

In a conical pendulum the bob of mass '\(\mathrm{m}\)' moves in a horizontal circle of radius '\(r\)' with uniform speed '\(\mathrm{V}\)'. The string of length '\(\mathrm{L}\)' describes a cone of semi vertical angle '\(\theta\)'. The centripetal force acting on the bob is ( \(\mathrm{g}=\) acceleration due to gravity)