For the structure shown, $F=6\mathrm{.}3kN$ and $L=2\mathrm{.}5m$ and for both truss members, $A=3{10}^{-4}{m}^2,E=70$GPa.

Determine the stiffness of element $1$ in the units of $M\frac{N}{m}.$

Must Use Svmmetrv!

QUESTION $2$

Submit the complete solution for $Q1,$ including:

a$.$ the displacement components at node $3,$

b$.$ the reaction forces, and

c$.$ the stress in element $1.$