Extracted text: Example 2.6 A trapezoidal channel with a bed width of 4.0 m and side slopes of 1.5 H: I V carries a certain discharge. (a) Based on observations, if the critical depth of the flow is estimated as 1.70 m, calculate the discharge in the channel. (b) If this discharge is observed to be flowing at a depth of 2.50 m in a reach, estimate the Froude number of the flow in that reach.