Calculate the hydrodynamic reaction of the curved wall of an open horizontal rectangular channel,knowing the volumetric flow rate Qy [m³/s], width b [m] and the water filling height h [m].

The width of the outlet channel is 0,7b [m]. For the calculations, take: Q_{V}=0,12+0,01 \cdot N r\left[m^{3} / s\right]= b=0,3+0,01 \cdot N r[m]= h=0,2+0,01 \cdot N r[m]= \rho=1000\left[\mathrm{~kg} / \mathrm{m}^{3}\right]