PROBLEM $3$

The $5-ft$ concrete post is reinforced with six steel bars, each with a $\frac{7}{8}-in.$ diameter.

Knowing that $E_s=29{10}^6$ and $E_c=3\mathrm{.}6{10}^6,$ determine the normal stresses in

the steel and in the concrete when a $200-$kip $(200,000lbf)$ axial centric force is applied to

the post $($so that it is in compression$).$

a$)$ Enter the stress in the steel in ksi $($thousands of psi $)1$ksi$=1,000$

b$)$ Enter the stress in the concrete in ksi $($thousands of psi $)1$ksi$=1,000$

IMPORTANT: do not enter the units, and do not forget to have a minus sign to indicate

compression.