For the structure in the figure: $E=200$GPa

Yield Strength $y=345$MPa

Tensile Strength $S=414$MPa

Coefficient of Safety $[n]=3$

$1$ m

$q=14k\frac{N}{m}$

A

C

$1$ m

B

$1$ m

$1.$ Find the reactions at the external supports and the normal force

in the elastic element.

$2.$ Find the dimension $$b$.$ b$=($mm$)$

$3.$ Calculate the deformation of the rod.