For the square $5050mm$ cross section shown in Figure Q$2,$ find the maximum tensile and

compressive stresses induced in the beam if a force of $P=10kN$ is applied. Plot the distribution of

total stress across the section. The curved beam is made of steel with $E=200$GPa,$v=0\mathrm{.}3$ and ${}_r$

$=350$MPa. Comment on your answer.