In vacuum and weightlessness, at the bottom of a cylindrical vessel (a cup), there is a layer of solid substance of molar mass μ. This substance sublimes slowly (evaporates from the solid phase into gaseous phase) and pushes thereby the vessel to the opposite direction. Estimate the terminal...
so I have this problem from olympiad
the maximum value of the satellite velocity component parallel to the high axis of the ellipse(a)
and the answer should be vmax=a/b*sqrt(G*M/a). How to prove this?