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Angular velocity
An object’s rate of change of angular position.
Centripetal acceleration
The acceleration of an object moving in circular motion.
Any object in circular motion must have an acceleration since the direction of the
object, and therefore the velocity of the object, is constantly changing.
Centripetal force
The resultant force responsible for an object moving in circular
motion. Centripetal forces always act towards the centre of the object’s rotation.
Frequency
The inverse of time period. The number of rotations per unit time.
Period
The time taken for one whole rotation.
Radian
A unit of angle, where 2π equal to one complete angular rotation.