Q$1.$ Knowing that $P=13kN.$

Consider the beam and loading shown, determine the maximum shearing stress at section n$-$n $($maximum shear stress occurs at the neutral axis$).$

$($Round the final answer to the proper sig figs.$)$

The channel cross section dimensions are:

$h=100mm,w{f}_f=50mm,t_w=t_f=10mm$

Draw the shear stress distribution along the cross section

Given:

$A_x=13kN$&$M_A=19\mathrm{.}5kN.m$

$\frac{?}{\text{b}\text{a}\text{r}}(Y)=50mm,I_{NA}=2\mathrm{.}46**{10}^{6}m{m}^4$

$=\frac{VQ}{It},Q=\frac{A_i}{b}ar(y_l)$

Draw the Shear Force Diagram $($SFD$)$ first to find the maximum shear force.

$Q_{\text{f}\text{l}\text{a}\text{n}\text{g}\text{e}}=Q_b$

$\backslash$table$[[$i$,$Shape,$A_i,\frac{?}{\text{b}\text{a}\text{r}}(y{)}_i,\frac{A_i}{b}ar(y{)}_i$