Use problem 5.16 do the formulas and values only, ignore parts a.) b.) and c.) at the bottom. Follow the instructions given in P3.

5.16 Water is flowing in a trapezoidal channel at a rate of Q-20 m3/s. The critical depth y for such a channel must satisfy the equation Page 143 Q2 where g-9.81 m/s2, Ae-the cross-sectional area (m2), and B- the width of the channel at the surface (m). For this case, the width and the cross-sectional area can be related to depth y by Solve for the critical depth using (a) the graphical method, (b) bisection, and (e) false position. For (b) and (c) use initial guesses oF4 0.5 and , 2.5, and iterate until the approximate error falls below 1% or the number of iterations exceeds 10. Discuss your results. P3) Obtain the solution to problem 5.16 on page 143 by using the in-built MATLAB function f zero ( ) with :05. Use the correct Toix to ensure that we achieve , = 1% Submit screenshot of results in command window