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Two - object pulley question

  1. Oct 17, 2009 #1
    1. The problem statement, all variables and given/known data
    Two objects of different masses are tied together by a pulley string. One object is on a horizontal, frictionless surface, and the other is hanging over the edge of the surface. The object on the surface has mass 5 kg and the hanging object has mass 2 kg. I am to find the acceleration of both objects. However, no force quantity is given in the question. How do I find their accelerations? (pulley is massless)

    2. Relevant equations

    w = (mass)(gravity)

    3. The attempt at a solution

    w1 = (5)(9.8) = 49 N
    w2 = (3)(9.8) = 29.4 N
  2. jcsd
  3. Oct 17, 2009 #2


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    Homework Helper

    Start with a free-body diagram of both blocks. Identify all forces, write out Newton's second law, and solve.
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