What kind of relation exists between kinetic energy (E_k)and orbital radius (r) of the satellite revolving around the earth?

What kind of relation exists between kinetic energy (E_k)and orbital r

1.	What kind of relation exists between kinetic energy (E_k)and orbital radius (r) of the satellite revolving around the earth?
Answer» `E_k prop R ` `E_k prop r^2` `E_k prop 1/r` `E_k prop 1/r^2` Solution :`implies` CENTRIPETAL force for revoloving statellitte = GRAVITATIONAL force `(mv^2)/(r) = (GM_em)/r^2` `:. 1/2 mv^2 = (GM_em)/(2R)` `:. E_k = ((GM_em)/2).1/r` `:. E_k prop 1/r [ :. (GM_em)/2 ` is cosntant ]