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Uniform Circular Motion
 an object rotating at a steady rate
 motion of an object moving at constant speed along a circular path

Angular Displacement
 The angle an object in circular motion turns through
 time period = T
 frequency = f
 in radians
 2πt/T
 2πft

Angular Speed
 The angular displacement per second
 Ω (angular displacement) = 2π/T = 2πf = v/r

Centripetal Acceleration
 direction of the velocity changes continuously as the object moves in a circular path
 acceleration towards the centre of the circle

Centripetal force
 resultant force on an object moving round a circle at constant speed
 acts towards the centre of the circle
 F=mw^{2}r

