1. Consider the viscous laminar flow of oil between two stationary parallel plates as shown in the figure (2 dimensional, p = 920 kg/m', u = 0.4 Ns/m ). Assuming

that the pressure difference between station (1) and (2) is, AP= 1 atm, calculate: a) The velocity distribution b) The average , and maximum velocity c) The flow rate (per unit width) d) The shear force on the lower plate and on the upper plate e) The Reynolds number and the friction coefficient on the lower wall.