The apparatus shown in Figure P1.2 is used to coat a thin sheet of steel with oil. The fluid is SAE 10W-30 oil, which has a viscosity of 0.02 kg/(m-s) at the temperature of interest. If h = 4 mm, and...

The apparatus shown in Figure P1.2 is used to coat a thin sheet of steel with oil. The fluid is SAE 10W-30 oil, which has a viscosity of 0.02 kg/(m-s) at the temperature of interest. If h = 4 mm, and the total oil–steel contact area is 20 m², calculate the force necessary to move the steel at a velocity of 5 m/s. Assume that the velocity profile in the fluid is linear.