ð 5. Circular Motion
ð Theory â ð 5. Circular Motion
Circular motion is motion in a circular path at constant speed.
Angular velocity Ï = Ξ/t = 2Ï/T = 2Ïf, where T is period and f is frequency.
Speed v = Ïr, where r is the radius of the circle.
Centripetal acceleration a = v²/r = ϲr.
Centripetal force F = mv²/r = mϲr, directed towards the centre.
The period T is the time for one complete revolution.
Banked tracks use the horizontal component of normal reaction to provide centripetal force.
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