Anewtonian fluid with a viscosity of 50 cp is placed between two large parallel plates separated by a distance of 8 mm. each plate has an area of 2 m2 . the upper plate moves in the positive x-direction with a velocity of 0.4 m/s while the lower plate is kept stat calculate the steady force applied to the upper plate. the fluid in part (a) is replaced with another newtonian fluid of viscosity 5 cp.. if a steady force applied to the upper plate is the same as that of part(a), calculate the velocity of the upper plate.