Question

. Oil flows into the tank with an average velocity of 4m/s through the 50-mm diameter pipe at A. Flow out of the tank through the 20-mmdiameter pipe at B is 2m/s. Determine the rate at which the depth y of the oil in the tank is changing.(Hint: Watch Video "Chapter 5-Unsteady Mass.mp4")

Fig: 1

Fig: 2

Fig: 3