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Recoil Problem

  1. Nov 7, 2005 #1
    can anyone help me with this problem ?? if i am given the mass of a person shooting and arrow, the mass of the arrow and the velocity at which the arrow was shot, what formula could i use to find the the recoil speed of the person.
     
    Last edited: Nov 7, 2005
  2. jcsd
  3. Nov 7, 2005 #2
    i've tried using (M1*V1)+(M2*V2) = (M1+M2)*Vf but that didn't work. i've also tried to use M1V1 = M2V2 a couple of ways but can't get the right answer. am i even close to using the right equation??
     
  4. Nov 7, 2005 #3
    Yes you are trying to conserve momentum. You need to use the first one but in a different way.
     
  5. Nov 7, 2005 #4
    ok, thanks i was actually doing it right but i'm an idiot and converted g to kg wrong.
     
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