Question

Figure 16-27 shows the convergence of two streams to form a river. One stream has a width of 9.5 m, depth of 4.4 m, and current speed of 2.1 m/s. The other stream is 7.4 m wide and 3.1 m deep, and flows at 2.2 m/s. The width of the river is 10.9 m, and the current speed is 3.3 m/s. What is its depth? m

Answer 1

Here, V1 + V2 = V river

=>   (9.5 * 4.4 * 2.1) + (7.4 * 3.1 * 2.2) = 10.9 * 3.3 * D

=> D =   3.843 m

=>   depth of river =   3.843 m