(Solved): The wide open channel (acceptable with a rectangular cross section) whose ongitudinal profile is ...

The wide open channel (acceptable with a rectangular cross section) whose ongitudinal profile is shown in the figure s designed at two different channel pottom slopes. \( \mathrm{I}_{01}=0.025, \mathrm{I}_{02}=0.001 \) and Manning roughness coefficient \( n=0.0168 \). Since the uniform flow depth is \( y_{01}=1 \mathrm{~m} \) and \( N_{F r 1}=3 \) in the channel with the channel bottom slope \( \mathrm{I}_{01} \);