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Conservation of energy, A bomb explodes into three pieces

  1. Nov 26, 2012 #1
    1. The problem statement, all variables and given/known data
    A bomb explodes into three pieces, two have an equal mass and fly off at 60 degress to one another with the speed of 100 m/s. The third piece has three times the mass of each of the other pieces. Find the direction and magnitude of the third piece immediatly after the explosion



    2. Relevant equations
    Is my solution correct?
    If not, how should I re-approach the problem


    3. The attempt at a solution
    2A + 60 = 360
    2A = 300
    A = 150 degres, A is the direction of the third angle

    2*100m/s cos(180-150)-3mv = 0
    200/3cos(30)
    57.7
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 26, 2012 #2

    tiny-tim

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    Science Advisor
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    Welcome to PF!

    Hi ErikiaMeno! Welcome to PF! :smile:
    Yes, that looks ok …

    what is worrying you about that? :confused:
     
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