PhysicsMedium159×since 2002Q7248A satellite of mass mmm revolves around the earth of radius RRR at a height xxx from its surface. If ggg is the acceleration due to gravity on the surface of the earth, the orbital speed of the satellite isAgR2R+x{{g{R^2}} \over {R + x}}R+xgR2BgRR−x{{gR} \over {R - x}}R−xgRCgx{gx}gxD(gR2R+x)1/2{\left( {{{g{R^2}} \over {R + x}}} \right)^{1/2}}(R+xgR2)1/2Check answerSkip