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Homework Help: Do you think this is correct?

  1. Apr 11, 2012 #1
    1. The problem statement, all variables and given/known data

    A rifle with a mass 2.2kg fires a bullet with a mass of 5g. The bullet moves with a velocity of 600m/s.

    1) What is the momentum of the bullet after it´s fired?
    2) What is the recoil velocity of the rifle assuming that no external forces act on the rifle?

    2. Relevant equations

    P = mv

    3. The attempt at a solution

    For question 1) P = 0.005kg x 600m/s = 3kg. m/s.

    For question 2) I wrote 0.

    Are my answers correct?
  2. jcsd
  3. Apr 11, 2012 #2
    Check my post in your other thread.
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