The longitudinal section of a wide rectangular channel is given below. The bottom slope of the channel from $(S_0{)}_1=0\mathrm{.}025$ to

$(S_0{)}_2=0\mathrm{.}001.$ the nanning's roughness coefficient is $0\mathrm{.}0168$ and the normal depth for section $1$ is $1m$ as shown.

If froude number for section $1$ is $3$:

a$)$ Calculate discharge per unit width of channel

b$)$ Calculate critical depth of channel for both sections.

C$)$ Calculate the normal depth of Section $2$

d$)$ Determine the flow regime for both section

e$)$ if the depth of hydraulic is:

Draw table and types of profiles