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Velocity homework help

  1. Apr 7, 2009 #1
    1. The problem statement, all variables and given/known data
    A 100kg object is released from rest at an altitude of h=50km. Ignoring aerodynamic drag and wind behaviour, determine the velocity of the object just before it strikes the earth at sea level, asumming gravity is 9.81 m/s^2 and constant


    2. Relevant equations

    F=G(m1m2)/r^2

    F=ma
    3. The attempt at a solution
    F=967.74N
    a=9.68m/s2
     
  2. jcsd
  3. Apr 7, 2009 #2

    tiny-tim

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    Science Advisor
    Homework Helper

    Hi student1! :smile:
    Hint: use conservation of energy :wink:
     
  4. Apr 7, 2009 #3
    Re: velocity

    thank you very much
     
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