Consider the bar made from two segments, having constant cross$-$sectional areas $A_1=3i{n}^2$ and $A_2=5i{n}^2$ and

lengths $L_1=4ft$ and $L_2=2ft.$ There are two loads $P_1=300lb$ and $P_2=-220lb$ on the bar as shown. Take $d_1$

$=2ft$ and $d_2=5\mathrm{.}6ft.($Figure $1)$

Determine the average normal stress at point A which location is at $x=5ft.$

Express your answer in pounds per square inch to three significant figures. Enter negative value in the

case of compression and positive value in the case of tension.

Determine the average normal stress at point $B$ which location is at $x=1ft.$

Express your answer in pounds per square inch to three significant figures. Enter negative value in the

case of compression and positive value in the case of tension.