Orbital velocity is the speed at which an astronomical object orbits around a barycenter or the center of mass of the most massive body in a gravitationally bound system. Orbital velocity is the rate of change of displacement with respect to time. It is the velocity needed to balance gravity's pull on the body and the inertia of the body's motion. The equation for orbital velocity is v = sqrt(GM/r). For a satellite revolving around the Earth, the orbital velocity depends on its altitude above Earth. At zero altitude, the orbital velocity would be around 7.9 km/s.
Orbital velocity is the speed at which an astronomical object orbits around a barycenter or the center of mass of the most massive body in a gravitationally bound system.
Orbital velocity is the rate of change of displacement with respect to time. It is the velocity needed to balance gravity's pull on the body and the inertia of the body's motion. The equation for orbital velocity is v = sqrt(GM/r). For a satellite revolving around the Earth, the orbital velocity depends on its altitude above Earth. At zero altitude, the orbital velocity would be around 7.9 km/s.
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