Wikipedia says energy = GMm/r.
if g=GM/r² then energy = mgr, proportional to r given g is constant.
apologies
My previous comment was wrong, I derivated while integrating.
Wikipedia says energy = GMm/r.
if g=GM/r² then energy = mgr, proportional to r given g is constant.
apologies
My previous comment was wrong, I derivated while integrating.