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Resolving forces and finding from the resultant

  1. Jun 1, 2012 #1
    1. The problem statement, all variables and given/known data

    Three forces: F1, F2 and the other with a magnitude of 40 N act on the ring bolt as shown in Fig. C.1. The resultant, R, has a magnitude of R = 180 N and acts at an angle of 80° anti-clockwise from the x-axis. Determine the magnitudes of F1 and F2.


    2. Relevant equations

    ƩFx
    ƩFy

    3. The attempt at a solution


    ƩFx=F2*cos(40)-F1cos(60)=180*cos(80)
    ƩFy=F1*sin(40)+40+F2*sin(40)=18-*sin(80)

    ????????
     

    Attached Files:

  2. jcsd
  3. Jun 1, 2012 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    hi mm391! :smile:
    two equations, two unknowns …

    eliminate one unknown and solve :wink:
     
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