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Hard physics quesiton

  1. Jan 9, 2014 #1
    1. The problem statement, all variables and given/known data
    A small explosive charge is placed in a rubber block resting on a smoother surface(frictionless). when the charge is detonated, the block
    breaks into three pieces. A 200g piece travels 1.4 m/s and 300g piece travels at 0.90m/s. The third piece flies off at a speed of 1.8m/s.
    If the angle between the first two pieces is 80(degrees), calculate the mass and the direction of the third piece. two sig figs.
    2. Relevant equations
    n/a


    3. The attempt at a solution
    honestly no idea. Help would be wonderfull
     
  2. jcsd
  3. Jan 9, 2014 #2
    First start is the body diagram. Indicate what you know from the problem.
     
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