Circular Motion

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Circular Motion

Examples:

  • Satelittes orbitiong planets
  • Cars going around roundabouts
  • Fairground rides
  • Electrons orbiting a necleus
  • Hammer throwing

Centripetal Force

(http://ts1.mm.bing.net/th?id=HN.608050812578562832&pid=15.1&P=0)

If the radius of the circle is r, then the distance moved around the circle is rθ, where θ is in radians. 

r x θ = s           therefore speed =s/t = rθ/t


Angular Velocity = ω = θ/t 


Tangential Speed = ω x r

 Centrpetial force is the RESULTANT FORCE. It is not a new force!

It is the

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