Consider a two$-$dimensional section of an internal structural wall exposed to gas flow as shown in

the sketch below. Find the resultant fluid$-$dynamic force experienced by the wall if the fluid

pressure and shear distributions at the wall are estimated from experimental data as follows:

$()=101325(1+)$ N$/$m$2($ is in meters$)$

$()=12\mathrm{.}66(+0\mathrm{.}06)-0\mathrm{.}4$ N$/$m$2($ is in meters$)$