Circular Orbit – Math – Snap! Forum https://forum.snap.berkeley.edu/t/circular-orbit/6915
Stuff about math! There are 2 planets,one is big (mass M1 kg),and one is small (mass M2 kg),They are R meters apart.The big planet can not move.What is,to maintain a stable circluar orbit, the speed of the small planet …
(we are deforming minor axis) semi-minor axis given the eccentricity "e" => $$ b=