V,(x) Q3. A fluid (viscosity=1.5 g cm s', kinematic viscosity=1.75 cm? s') is flowing down an inclined wall with a mass flow rate of 250 t/h. If the fluid thickness is B 2 cm for a wall width of 2.1 m, what should be the mean velocity of this fluid and the angle with the vertical 4 Ax plane? L (20 points) N