Formula: Circular Motion Centripetal acceleration    Radius    Angular velocity

Formula: Circular Motion
Centripetal force perpendicular to angular velocity

Centripetal acceleration

Acceleration, which a body (e.g. a planet, a particle) experiences, which moves on a circular path. The centripetal acceleration points like the centripetal force to the circle center (in radial direction).


Radius of the circular path. This is the distance from the center of the circle to the rotating body.

Angular velocity

Angular velocity (angular frequency) indicates which angle is covered by the body per second. If \(\omega\) is doubled, then the centripetal acceleration \( a_{\text z} \) is quadrupled.

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