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Homework Help: How to Find Forces

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

    I am given this
    I got the equation

    bikwo9.jpg



    2. Relevant equations

    Fx= 0 = F1 cos (45) + F2 Cos(30) - 500N
    F1 .70 + F2 .86 - 500 N

    Fy= 0 = F1 Sin (45) - F2 Sin(30)
    F1(.70) - F2(.5)


    3. The attempt at a solution

    how can I find F1 & F2 to Solve
    Please
    Thank you

    I dont know
    am I suppose to use Fy equation to find F2 in FX ?
     
  2. jcsd
  3. Jan 27, 2009 #2

    LowlyPion

    User Avatar
    Homework Helper

    Simply use the 2 equations that you have and solve.

    You know already from the second equation that F1 = F2*(sin30/sin45)

    Substitute in the first equation and solve ...
     
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