A Newtonian oil undergoes steady shear between two horizontal plates. The lower plate is fixed,and the upper plate, weighing 0.8 N, moves with a constant velocity of 0.4 m/s. The distance between the plates is constant at 1.0 cm and the area of the upper plate in contact with the fluid is2.0 m?. What is the viscosity of this fluid (in g/(m-s))?

Fig: 1