STEP $2)$

Fig$\mathrm{.}2b=300mm,h=600mmd=500mm$

$A_s=2200=400m{m}^2.(M=50kNm)$

$($Neutral axis, N$.$A$.)(\frac{?}{\text{b}\text{a}\text{r}}(y{)}_{c2})$

$(\frac{?}{\text{b}\text{a}\text{r}}(y{)}_{t2}).$

# Hint: $E_c=25,000$MPa, $E_s=200,000$MPa $,$

$(n=\frac{E_S}{E_c}=8)(n{A}_s).$

$2(I_{\{\text{:}{y}_2)}).$

# Hint : $2(I_s).$

$(M)({}_{c2})({}_{t2})$

$.$

$()2$MPa $,.$