Derive an expression for orbital velocity of the satellite.

1.	Derive an expression for orbital velocity of the satellite.
Answer» Solution :For a satellite of mass M to move in a circular orbit, CENTRIPETAL FORCE must be ACTING on the satellite. This centripetal force is provided by the EARTH's gravitational force. `(Mv^2)/((R_(E)+h))=(GMM_E)/((R_(E)+h)^(2))` `V^(2)=(GM_E)/((R_(E)+h))` `v=sqrt((GM_E)/((R_(E)+h)))`

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