For the segmented bar system shown below, member $(1)$ has a cross$-$sectional area of $540m{m}^2$ and an

elastic modulus of $28$ GPa $.$ Member $(2)$ has a cross$-$sectional area of $880m{m}^2$ and an elastic modulus

of $16\mathrm{.}5$ GPa $.$ Find:

a$)$ Draw and label the axial force diagram for the system with the sign convention discussed in class.

b$)$ Deflection in member $(2)$ in mm $,$ clearly indicate elongation or shortening.

$[$Ans$.$ to check: $5\mathrm{.}14$ mm shortening$]$

c$)$ Deflection of point A relative to the support in mm$,$ clearly indicate direction