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Three Dimentional Force System

  1. Sep 27, 2009 #1
    1. The problem statement, all variables and given/known data

    http://img196.imageshack.us/img196/3227/problem2d.jpg [Broken]

    2. Relevant equations

    3. The attempt at a solution

    So far I found TCE and TCD, but I am not sure how to find the components for TCA.

    TCEforce vector = 0i + 0.3685TCEj - 0.9296TCEk

    TCDforce vector = -0.5012TCDi + 0j + 0.8653TCDk

    TCAforce vector = ?

    I'm not sure how to get the force vector components for TCA from the figure. Can anyone help?
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 27, 2009 #2


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    The crate produces a force down which must be opposed by the sum of verticle components of TCA and TBA. Also, the horizontal components of TCA and TBA must be equal in order for them to be in equilibrium.

    You should be able to write out two equations and solve for the two unknowns.
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