A compound pendulum isdefined as a rigid slab which oscillates about a fixed point O, call...

A compound pendulum isdefined as a rigid slab which oscillates about a fixed point O, called the center of suspension. Show that the period of oscillation of a compound pendulum is equal to the period of a simple pendulum of length OA. where the distance from A to the mass center Gis.Point A is defined as the center of oscillation and coincides with the center of percussion defined in Prob. 17.66.