1.77 A 25-mm-diameter shaft is pulled through a cylindrical bear- ing as shown in Fig. P1.77. The lubricant that fills the 0.3-mm gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0 x 104 m²/s and a specific gravity of 0.91. Determine the force P required to pull the shaft at a velocity of 3 m/s. Assume the velocity distribution in the gap is linear. De Bearing rea Lubricant Shaft 0.5 m- Figure P1.77 has lume some the fotmospheric ma 0.01 V cess take Cisentropic KPP