2. Water enters a 0.05 m diameter tube at section #1 at an average speed of 0.5 m/sand exits through station #2 and #3, as shown. The diameter of the exit at station #2 is 0.03 m and the average velocity there is 0.5 m/s, as well. Calculate the average exit velocity at station #3 if the tube diameter there is 0.02 m.

Fig: 1

Fig: 2