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Homework Help: Find Distance.

  1. Oct 8, 2009 #1
    1. The problem statement, all variables and given/known data

    A ball weighing 5kg is kicked off a cliff with the height of 20 meters.
    What is the distance the ball travels?


    g (gravity) =9.80
    I (impulse) = 50kg m/s
    m (mass) =5kg
    h (height) =20m



    2. Relevant equations


    3. The attempt at a solution

    Found the v(f) which is 10 m/s.
    Found the v(i) which is 0 m/s.
    Last edited: Oct 8, 2009
  2. jcsd
  3. Oct 8, 2009 #2
    t = square root of 2*20/9.81

    t= 2.019 seconds
  4. Oct 9, 2009 #3


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    Staff Emeritus
    Science Advisor
    Homework Helper

    How do you know the impulse is 50 kg m/s? The problem statement did not say anything about impulse.

    How did you get these?
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