Mechanics
Orbital Velocity
Velocity for circular orbit at radius r.
Variables
vm/s
Orbital velocity
Circular orbit speed
GN·m²/kg²
Gravitational constant
6.674×10⁻¹¹
Mkg
Central mass
Mass being orbited
rm
Orbital radius
Distance from center
Derivation
Set gravitational force = centripetal force: GMm/r² = mv²/r.
Your notes
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