For the truss shown in the figure, the forces F1 and F2 are 9 kN and 3 kN, respectively. The force (in kN) in the member QS is (All dimensions are in m)
11.25 tension
11.25 compression
13.5 tension
13.5 compression
Correct Option: A
By method of sections ∑V = 0 F1 = FQS sin 53.1 ⇒ FQS = 11.25(T)
