Specify the magnitude F 3 and directions 3 . 3 and 3 so that
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Specify the magnitude F3 and directions α3. β3 and γ3 so that the resultant force of the three forces is FR = {9j} kN.
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X F3 αz Y3 135 -B312 Prob. 2-77 F₂ = 10 KN 30° F₁ = 12 kN
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