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Mechanics · gravitation

Circular Orbital Speed

Gives circular-orbit speed around a spherical mass in the two-body approximation.

v = √(Gm / r)

Copy formats

Variables

v
orbital speedm/s
G
gravitational constantN·m²/kg²
m
central masskg
r
orbital radiusm

Conditions / notes

Assumes a circular orbit and a mass much smaller than the central body.

Reference details

Subject
Mechanics
Topic
gravitation
Plain text
v = sqrt(G m / r)

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