Orbital Velocity Of A Satellite — the NEET Physics formula with its derivation, variables, validity constraints and worked solver.
Orbital Velocity of a Satellite Strictly applies to circular orbits where the mass of the satellite is negligible compared to the central body. Set Gravitational Force equal to Centripetal Force: F g = F c Substitute formulas: G(Mm)/r 2 = (mv 2)/r Divide both sides by mass of satellite (m) Multiply both sides by r Solve for v Orbit must be circular. r must be greater than the radius of the central body (M). Relativistic effects are ignored. Believing orbital velocity depends on the mass of the satellite. Using altitude instead of orbital radius (forgetting to add the planet's radius). Assuming higher orbits require faster speeds (actually, velocity decreases as radius increases).