i need prove of acceleration due gravity g=GM/R2 Share with your friends Share 5 Govind answered this As given in the figure, body of mass m is situated outside thesurface of earth. Therefore, the force on mass m will be dueto earth whose mass M is concentrated at the centre O.Force of attraction between body and earth F will beF=GMmR2 .....1where G=gravitational constantForce on mass m due to gravity pull will beF=mg .....2Equating equation 1 and 2, we haveGMmR2=mg⇒g=GMR2 -5 View Full Answer