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Homework Help: Free body diagrams and Newton's Law

  1. May 1, 2015 #1
    1. The problem statement, all variables and given/known data
    2 masses, m1 and m2 are connected by a cord and placed on a frictionless table as
    shown in the diagram below. m1 slides on the frictionless table while m2 is hanging from a light frictionless pulley.
    What would be the mass of the hanging mass m2 if we know that the tension in the cord is T and the mass of the sliding mass is m1


    3. The attempt at a solution
    I drew a free body diagram for the system as a whole then I got that resultant force on the whole system is F=mg since it is only the weight of the two blocks. I don't really know how to go on from there.
  2. jcsd
  3. May 1, 2015 #2


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    Science Advisor
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    Gold Member

    It's generally better to consider a separate FBD for each body.
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