Worksheet 12: Fluid dynamics 1. A swimming pool has a diameter of D = 16.6 m. The water in the pool is h = 2.0 m deep. You want to drain the pool through a pipe connected to a hole in the bottom of the pool. The outlet of the pipe is h2 = 0.2 m h below the bottom of the pool. The pipe has a diameter of h2 d = 6.0 cm. What is the pressure at the surface of the pool? b. What is the pressure just outside the end of the pipe where the water comes out? c. At what speed does the water initially flow out of the pool? (Neglect the velocity of the water at the surface.) d. At what initial speed does the water depth in the pool decrease? Was it justified to neglect this in part c? e. What is the initial volume flow rate of the water through the hole