Physics help please (force)?

The following problem concerns a 60kg gymnast performing giant swing on a high bar. When the gymnast's Centre of mass (COM) reaches its highest point, it is 1.2m directly above the bar and travelling to the right at 2.6m/s. compute the magnitude of the centripetal force needed to keep the gymnasts COM moving in a circle with a constant speed. What is the direction of the acceleration of the COM?