Water Flows Out of a Large Reservoir Through 5

Multiple Choice

Water flows out of a large reservoir through 5.0-cm diameter pipe. The pipe connects to a 3.0-cm diameter pipe that is open to the atmosphere, as shown in the figure. What is the speed of the water in the 5.0-cm pipe? Treat the water as an ideal incompressible fluid.

A) 2.3 m/s
B) 3.2 m/s
C) 3.9 m/s
D) 8.9 m/s
E) 10 m/s