Two steel truss members, $\mathrm{AC}$ and $\mathrm{BC}$, each having cross sectional area of $100 \mathrm{~mm}^{2}$, are subjected to a horizontal force $\mathbf{F}$ as shown in figure. All the joints are hinged.
The maximum force $\mathbf{F}$ in $k N$ that can be applied at $C$ such that the axial stress in any of the truss members DOES NOT exceed $100 \mathrm{MPa}$ is
(A) 8.17
(B) 11.15
(C) 14.14
(D) 22.30
Two steel truss members, $\mathrm{AC}$ and $\mathrm{BC}$, each having cross sectional area of $100 \mathrm{~mm}^{2}$, are subjected to a horizontal force $\mathbf{F}$ as shown in figure. All the joints are hinged.
The maximum force $\mathbf{F}$ in $k N$ that can be applied at $C$ such that the axial stress in any of the truss members DOES NOT exceed $100 \mathrm{MPa}$ is
(A) 8.17
(B) 11.15
(C) 14.14
(D) 22.30