$1)$

The beam's cross$-$section remains the same along x direction, which is a solid rectangle with a width $\backslash (\backslash$mathrm$\{$b$\}=0\mathrm{.}2\backslash$mathrm$\{$~m$\}\backslash )$ and height $\backslash (\backslash$mathrm$\{$h$\}=0\mathrm{.}4\backslash$mathrm$\{$~m$\}\backslash ).$ Find out

$1)$ the maximum magnitude $($absolute value$)$ of shear stress and

$2)$ the location $($in terms of $\backslash ($ x$,$ y$,$ z $\backslash ))$ of maximum magnitude of shear stress $\backslash (\backslash$tau$\_\{\backslash$mathrm$\{$xy$\}\}\backslash )$ in this beam.

Final answers: $1)$ max shear stress is $1\mathrm{.}12$ kPa $.2)$ You need to find the $\backslash (\backslash$mathrm$\{$x$\},\backslash$mathrm$\{$y$\}\backslash )$ coordinates by yourself.