Question $6$: Panel force$($s$)$

A tank of water has a panel installed in the $x-z$ plane, shown as a shaded region in the figure below. Heights $h_1=4m$ and $h_2=6$

m $.$ Widths $b=18m$ and $w=12m$ and $L=1\mathrm{.}5m.$ Assume that the water is constant$-$density non$-$moving water with density $=$

$1000k\frac{g}{m^3}.$ Calculate the total force $($in meganewtons$)$ on the panel due to water pressure in the tank.

number rtol $=0\mathrm{.}02,$ atol $=1e-08$