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Projectile Motion (Guy commiting suicide)

  1. Nov 30, 2011 #1
    1. The problem statement, all variables and given/known data
    Bob has reached the special time in his life and runs horizontally off the edge of a cliff at 4.2 m/s. If the top of the cliff is 110m above the surface of the ocean, how long does it take Bob to reach the water?

    2. Relevant equations
    Y=Vot+1/2at^2
    Y=height
    t=time
    Vo=initial velocity


    3. The attempt at a solution
    -110=0+1/2(-9.8)t^2
    t= sqrt of((-110)/(1/2(-9.8)))
    t=4.74secs
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 30, 2011 #2

    ehild

    User Avatar
    Homework Helper
    Gold Member

    This is morbid. I hope Bob can swim, and also he has got secretly a parachute, just for the case he changes his mind during the fall. He has enough time, that you calculated correctly.

    ehild
     
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