A uniform solid sphere of mass m and radius r is fixed at a distanceh above a thin infinite sheet of mass density p. with what force does the sphere attract the

A uniform solid sphere of mass M and radius R is fixed at a distanceh above a thin infinite sheet of mass density p. With what force does the sphere attract the sheet? (a) pGMR 249 (b) MR h (c) 27pGM ) 4npGM h