Direction: Two steel truss members, AC md BC, each having cross sectional are of 100 mm2, are subjected to a horizontal force F as shown in figure. All the joints are hinged.
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If F = 1 kN, the magnitude of the vertical reaction force developed at the point B in kN is
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- 0.63
- 0.32
- 1.26
- 1.46
- 0.63
Correct Option: A
Vertical reaction at point B,
RB = FB cos 30 = 0.633 F
F = 1kN
∴ RB = 0.633 kN
