Circular Motion
The movement of an object along the circumference of a circular path or orbit.
Governing formula
v = ω r, ac = v² / r
SI unit
m/s, rad/s
In depth
Even at constant speed (uniform circular motion), the direction of velocity changes continuously, requiring an inward centripetal acceleration.
Examples in the real world
A satellite in circular orbit around Earth or a stone swung on a string.