Incompressible steady flow between parallel plates is shown. At the inlet the velocity profile is uniform with u = Uo = 8 cm/s. Downstream the flow develops into a parabolic profile. If the distance between the walls, zo, is equal to 4cm and the fluid is SAE 30 oil at 20°C. What is the value of umax in cm/s where umax is the velocity at the centerline?