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Statics Help!

  1. Jan 21, 2008 #1
    I have a beam suspended by two cables with two weights suspended by the beam. The weight of the beam is negligible. How would I find the resting angles of the cables.
     

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  3. Jan 21, 2008 #2

    HallsofIvy

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    Take T1 to be the tension in one cable, T2 the tension in the other. Take [itex]\theta1[/itex] to be the angle the first cable makes with the horizontal, [itex]\theta2[/itex] to be the angle the second cable makes. You can calculate the x and y components of both tension vectors in terms of T and [itex]\theta[/itex]. You know what the y component of each must be- they are given. You know that the x components must cancel, because the beam does not move left or right.
     
  4. Jan 22, 2008 #3
    This is not a homework problem!
    It has been so long since I did anything like that.
    I have
    T1x=T2x
    T1y+T3y+W1=0
    T2y+T3y+w2=0

    Then I get lost
     
  5. Jan 22, 2008 #4
    Okay I worked it out again, I finally get to a point where a Angle C = something Angle A.
    This needs to be in a resting position and that is where my problem is.
    W1=350lbs W2=650lbs B=20Deg
     

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