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Homework Statement
Reduce the system of forces in the diagram at point O. We know that F1 =F2 = 2F^(1/2), F =2F,and alpha =Pi/4. OA=AB=BD=a.
Homework Equations
Pythagoras
Trig Functions
F = Fxi + Fyj + Fzk
The magnitude of force F is:
F= (F2+F2+F2)^(1/2)
R=(ƩF)i+(ƩF)j+(ƩF)k
|MO| =|r|×|F|sinα
The Attempt at a Solution
Fx1 = 2F^(1/2).Cos(alpha)?
FX2 = 2F^(1/2).Cos(alpha)?
Fx3 = 2F?
Fy1 = 2F^(1/2).Sin(alpha)?
Fy2 = 2F^(1/2).Sin(alpha)?
Fy3 = 0?
R = (Fx1+Fx2+Fx3)i + (Fy1+Fy2+Fy3)j?
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