Repeat Problem 14.3 if the side slope is 45°.Problem 14.3A drainage structure for an indus...

Repeat Problem 14.3 if the side slope is 45°.

Problem 14.3

A drainage structure for an industrial park has a trapezoidal cross-section similar to that shown in Fig. 14.2 (c). The bottom width is 3.50 ft and the sides are inclined at an angle of 60° From the horizontal. Compute the hydraulic radius for this channel when the fluid depth is 1.50 ft.

FIGURE 14.2 Examples of cross sections of open channels.