A satellite of mass 'm' revolves around the earth of radius R at a height x from its surface. If 'g' is the acceleration due to gravity on the surface of the earth, than the orbital speed of the satellite is

A satellite of mass 'm' revolves around the earth of radius R at a hei

1.	A satellite of mass 'm' revolves around the earth of radius R at a height x from its surface. If 'g' is the acceleration due to gravity on the surface of the earth, than the orbital speed of the satellite is
Answer» `GX` `((GR^(2))/(R+x))^(1/2)` `(gR^(2))/(R+x)` `(gR)/(R-x)` ANSWER :B