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Impulse, momentum, and force during motion around a circle

  1. Feb 22, 2012 #1
    Hello,
    How would you calculate the impulse during the time which a car drives in a circle. You are given the car's mass and constant velocity and the time that the car was turning and how many degrees the car turned.

    Thanks in advance!
     
  2. jcsd
  3. Feb 22, 2012 #2
    Try the theorem of momentum.
     
  4. Feb 22, 2012 #3
    In the problem that I have, since neither the mass nor velocities change during the turn, would the impulse just be 0 for the duration of the turn?
     
  5. Feb 22, 2012 #4
    The momentum is a vector.Though the magnitude of it in your problem is a constant,it changes in its direction.
     
  6. Feb 23, 2012 #5
    I'm still not sure what that means...
     
  7. Feb 23, 2012 #6
    I=mv2-mv1
    Here I,v1,v2 are all vectors.I is the impulse.v1 is the initial velocity.v2 is the final velocity.Surely you can not say v1-v2=0(remember v1 and v2 are vectors ).
     
  8. Feb 23, 2012 #7
    Oh right. v1 and v2 will be pointing in orthogonal directions.
    So how can I represent these vectors in the given formula?
     
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