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Homework Help: A simple mechanics problem, please help

  1. Oct 10, 2004 #1
    http://hk.pg.photos.yahoo.com/ph/good_students/detail?.dir=7712&.dnm=7c7f.jpg [Broken]

    What should be the value of P to maintain the system in equilibrium?
    If we just consider the free body diagram of the 160kg box, should the tension be 1600N?(Because there are only 2 forces acting on the box only)
    Could any people please help?
    Last edited by a moderator: May 1, 2017
  2. jcsd
  3. Oct 10, 2004 #2
    Sorry mate...couldn't see your diagram (it doesn't show up).
  4. Oct 10, 2004 #3

    Chi Meson

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    I could not see it either, but according to what you said, you are correct:

    IF there are only two forces on an object, and one of them is weight, then the other must be equal to the weight if the object is in equilibrium.
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