A channel cross section, commonly called a

gutter, forms at the side of a street next to a

curb during rainfall conditions. The slope along

the roadway is $S_0=0\mathrm{.}0005,$ and the Manning

roughness coefficient is $n=0\mathrm{.}015.$ Determine the

discharge if the depth of flow is $y_0=12cm.$

a$)13\mathrm{.}32l\frac{t}{s}$

b$)18\mathrm{.}26l\frac{t}{s}$

c$)10\mathrm{.}42l\frac{t}{s}$

d$)8\mathrm{.}34l\frac{t}{s}$

e$)12\mathrm{.}11l\frac{t}{s}$