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Is this question dealing with law of conservation of momentum?

  1. Feb 4, 2009 #1
    1. The problem statement, all variables and given/known data
    A 75-kg man sits in the back of a 120-kg canoe that is at rest in a still pond. If the man beings to move forward in the canoe at .50m|s relative to the shore, what happens to the canoe?


    2. Relevant equations
    The equation they gave me is m1v1+m2v2 = m1v1'+m2v2'
    I don't get it.


    3. The attempt at a solution
    I didn't really make an attempt. All I have on the paper is
    (120 kg)(.50m|s) + ... I don't know what to put there. If it's even right!
     
  2. jcsd
  3. Feb 4, 2009 #2
    You have 2 different parts. At rest and moving, aka before and after, aka primed and unprimed.
     
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