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Homework Help: Tension and Acceleration

  1. Jun 21, 2009 #1
    1. The problem statement, all variables and given/known data
    A string is attached to a mass and a pulley at the top end and the mass is free to move and descends with a constant acceleration, a.
    By applying Newton's Laws to mass m, find an expression for the tension in the string, in terms of m, a and the acceleration due to gravity, g.

    2. Relevant equations


    3. The attempt at a solution
    I was thinking the net force downwards is mg-Tension force. And the net force results acceleration. So ma=mg-tension. is that correct?
  2. jcsd
  3. Jun 21, 2009 #2


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    Homework Helper
    Gold Member

    That's correct.
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