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Vertical velocity of a soccer ball

  1. Dec 8, 2008 #1
    1. The problem statement, all variables and given/known data
    A force of 17.0 N is applied to a 0.34 kg soccer ball for 0.090s, causing it to move off at 28 degrees above the horizontal. Determine the vertical velocity of the soccer ball at the end of the 0.090 second time interval.


    2. Relevant equations
    y= vyt + 1/2gt2
    vyf= vy + gt
    vf= vi + at

    3. The attempt at a solution
    I don't really understand how to do this. How should I go about doing this? I'm thinking that maybe I have to find the acceleration of the ball, then find the velocity, but I'm not really sure how I should go about doing that.
     
  2. jcsd
  3. Dec 8, 2008 #2

    LowlyPion

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    You're missing change in momentum that comes from the impulse of the kick delivered.
     
  4. Dec 8, 2008 #3
    So what do you suggest I do?
     
  5. Dec 8, 2008 #4

    LowlyPion

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  6. Dec 11, 2008 #5
    That doesn't help me much...
     
  7. Dec 11, 2008 #6

    LowlyPion

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