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Homework Help: Racing car centripetal force problem

  1. Nov 27, 2005 #1
    a racing car is traveling on a circular course of radius 641m at a speed such that it makes 1.7 rev in 1 minute. THe mass of the car is 1990kg. what is the centripetal force acting on the car?

    CF=ma=mass*acceleration
    a=V^2/r

    how do you find v?
     
  2. jcsd
  3. Nov 27, 2005 #2
    you use the fact that its travelling in a circle (distance = 2*pi*r), time can be found from the number of revs per minute.
     
  4. Nov 27, 2005 #3
    thank you i figured it out
     
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