text: c2,g,g relation is their exit? is their any relation between c2 velocity of light and g universal gravitational const and g acceleration due to gravity well, if you got c2 from e=mc2 then its actually c^2 or the speed of light squared.  so m=e/c2  and because f=gmm/r^2 and f=ma.  so a=gm/r^2.  and the m cancle out, so if there is a realationshiop then it is probably very remote and neglible.