Q$2/$ The best section for rectangular

width $6$ m $,$ Septh$=3m$ at

So $=0\mathrm{.}0005$ For

Earth material involved and Smooth Degree of irregutarity $,$ minor Relative, Effect of obstructions and minor degree of meandering, determine

$(1)$ velocity in $c\frac{m}{sec}-$

$(2)$ dischange capcity in $\frac{m^3}{sec}$