pressure. 1. depth. 5. A water tunnel has a circular cross section where the diameter diminishes from 3.6 m to 1.2 m. If the velocity of water is 3.0 m/s in the larger part of the tunnel, what is the velocity of water in the smaller part of the tunnel? 3 . G m 1.2 m 9.0 m/s 18 m / s 54 m/s d. 27 m/s 30 mls 6. A water bed that is 1.5 m wide and 2.5 m long weighs 1055 N. Assuming the entire lower surface of the bed is in contact with the floor, what is the pressure the bed exerts on the floor? 280 Pa 260 Pa