A rectangular weir with a crest length $=4\mathrm{.}3m$ and a height $z=0\mathrm{.}49m$ is placed in a rectangular channel that is $4\mathrm{.}3m$ wide. Determine the maximum discharge, in $\frac{m^3}{s},$ that can be measured by this weir using the broad$-$crested weir equations. Adopt the guidance of design that $\frac{L_{\text{c}\text{r}\text{e}\text{s}\text{l}}}{H}3.$ Hint: Refer to Tutorial $3,$ as this solution requires the application of Solver