A satellite of mass `m` is launched vertically ` upwards with an initial speed is from the ` surface of the earth.After it reaches height R ` (R=` radius of the earth) it ejects a rocket of ` mass `(m)/(10)` so that subsequently the satellite ` moves is a circular orbit.The kinetic energy ` of the rocket is `(G` is the gravitational ` constant; M is the mass of the earth).` `