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Homework Help: Really simple system of equations

  1. Oct 2, 2008 #1
    1. The problem statement, all variables and given/known data
    1. 2500-Tac cos [tex]\Phi=0[/tex]
    2. Tac sin[tex]\Phi-500=0[/tex]

    2. Relevant equations



    3. The attempt at a solution
    I have 2 equations. I need to solve for [tex]\Phi[/tex] to get Tac. I have got to the point of :
    Tac=500/sin[tex]\Phi[/tex]
    2500-500/sin[tex]\Phi*(cos\Phi)=0[/tex]

    after this i cant go any further

    I am looking at the solution of 11.31°. But I need to solve to get it.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Oct 3, 2008 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Hi yoleven! :smile:

    (have a phi: φ :smile:)

    Your second line should be 2500 - 500cosφ/sinφ = 0. :wink:
     
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