Show diagrams and formulas please!

Bearing Lubricant Problem 12 Situation: A 25-[mm]-diameter shaft is pulled through a cylindrical bearing as shown in Fig. 2. The lubricant that fills the 0.3-[mm] gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0*10-4 [m2/s] and a specific gravity of 0.91. Assume the velocity distribution in the gap is linear. Requirements: Please, determine the force in [N] required to pull the shaft at a velocity of 3 [m/s]. Shaft 0.5 [m]