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Momentum and Impulse separation question

  1. Apr 14, 2013 #1
    1. The problem statement, all variables and given/known data

    3 equal masses at rest break apart as shown. Find the 3rd velocity

    2. Relevant equations

    http://i168.photobucket.com/albums/u175/kingzer2/Photo2013-04-14073115PM_zps0ee829e4.jpg?t=1365985942 [Broken]

    3. The attempt at a solution

    I really have no idea how to do this :( sorry
     
    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Apr 14, 2013 #2
    Think conservation of momentum
     
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