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Circular Motion

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sean harvatine

on 12 February 2013

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Transcript of Circular Motion

Circular Motion An object that moves at constant speed in a circle. Uniform Circular Motion Speed Magnitude is constant What about the direction? Centripetal Acceleration Change in velocity ACCELERATION! center seeking
aka radial acceleration
always points toward center Centripetal Acceleration a = v /r r 2 Period (T) time for one revolution or event measured in seconds Frequency (f) number of revolutions per second measured in Hz Finding v Open to Problem Set 24 center seeking
aka radial force
always points toward center Centripetal Force What keeps the motorcycles & cars moving in a circle? ΣF = ma ΣF = ma What if you remove the force? It now becomes... r r You know this...
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