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Homework Help: Forces Equillibrium Problem

  1. Mar 3, 2008 #1
    1. The problem statement, all variables and given/known data
    Determine the maximum weight of the flowerpot that can be supported without exceeding a cable tension of 50 lb in either cable AB or AC. Note that the 2 cables make an angle 60 and 53.1 respectively with the horizontal


    2. Relevant equations

    Fnet=ma


    3. The attempt at a solution
    Fxnet=TABcos60-TACcos53.1 =0
    Fynet-TABsin60+TACsin53.1-W=0
    I dont know how to figure out if 50lb is the tension in cable AB or in AC
     
  2. jcsd
  3. Mar 3, 2008 #2
    i worked out the problem by trial and error and found out that the more vertical cable has the tension of 50 why is this so?
     
  4. Mar 3, 2008 #3

    PhanthomJay

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    Science Advisor
    Homework Helper
    Gold Member

    You have determined that the x components of the 2 tensions must be equal. A little trig will tell you why the cable with the greater angle from the horizontal must have a greater tension than the cable with the smaller angle, and thus, must fail first.
     
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