Two identical trusses support a load of 100 N as shown in

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Two identical trusses support a load of 100 N as shown in the figure. The length of each truss is 1.0 m, cross-sectional area is 200 mm²; Young's modulus E = 200 GPa. The force in the truss AB (in N) is

1. F = 150 N
2. F = 10 N
3. F = 100 N
4. None of above

Correct Option: C

⇒ 2F sin 30 = 100
⇒ F = 100 N