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Acceleration of wooden ball

  1. Dec 2, 2009 #1
    1. The problem statement, all variables and given/known data
    If you were to throw a wooden ball up one meter and then let it fall down to a negative meter, where would it accelerate?


    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Dec 2, 2009 #2

    CompuChip

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    Science Advisor
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    Re: velocity

    All the way down.
    Gravity always acts on it, so as long as it is in the air it has non-zero acceleration a = Fgrav/m.
    Only when you hold it (straining your muscles to do so) or letting the ground exert a normal force, you can cancel it such that the net force is zero hence a = 0..
     
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