a) A water system flows in a rectangular pipe 2.0 m wide, as shown in Figure 2.

The initial stream depth is 70mm. The water surface rises 40 mm as it passes over a portion where the channel bottom rises 10mm. If the viscous effects are negligible,

calculate the flowrate of the system.

(2) 1 100 mm (0) 70 mm 10 mm Figure 2