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Homework Help: Hanging mass question

  1. Nov 6, 2009 #1
    1. The problem statement, all variables and given/known data
    what determines the direction of acceleration assuming no friction of a hanging mass that is attached to two other masses? how do we calculate the net force of the system? Do we use the heaviest mass?

    2. Relevant equations

    3. The attempt at a solution
    i don't know...
  2. jcsd
  3. Nov 6, 2009 #2
    The masses are attached HOW? what are their positions? Is acceleration caused by gravity or are there ohter forces? I really don't know what's going on here.
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