Problem $1$: Open Channel Flow $(25$ pts$.)$

A hydraulic jump occurs in a $15-$m$-$wide rectangular, concrete channel $(n=0\mathrm{.}013).$ The

initial $($normal$)$ depth comes from a spillway discharge of $100\frac{m^3}{s}.$ The sequent depth is

$4\mathrm{.}15$ meter. Determine the energy loss $($in meter$)$ and the specific force $($or momentum$)$

per unit width of channel $($i$.$e$.,$ in Kilo$-$Newton$/$meter$).$