A hydraulic jump is a rather sudden change in depth of a liquid layer as it flows in an open channel as shown in Fig. P 4.34 and Video V

10.12. In a relatively short distance (thickness = e) the liquid depth changes from z1 to z2, with a corresponding change in velocity from V1 to V2. If V1 = 1.20 ft/s, V2 = 0.30 ft/s, and e = 0.02 ft, estimate the average deceleration of the liquid as it flows across the hydraulic jump. How many g's deceleration does this represent?