1. The problem statement, all variables and given/known data A satellite is at an altitude of 3R (R- Radius of the planet) circulating around the planet with a velocity v. In order to make its path elliptical the velocity is changed from v to βv. What should be maximum value of β such that the satellite doesn't collide with the planet? 2. Relevant equations First the expression of V is the orbital velocity and Initial energy = final energy.( in terms of Gravitation) I cant remember any other equation. 3. The attempt at a solution I tried but i didn't get the right answer.. The answer is sqrt(2/5)..Thanks in advance for help..