The client then provides you with the following situation. A flat plate of 50 cm is being pulled over a fixed flat surface at a constant velocity of 45 cm/sec. An oil film of unknown viscosity separates the plate and the fixed surface by a distance of 0.1 cm. The force required to pull the plate is measured to be 31.7 N, and the viscosity of the fluid is constant. e) Determine the viscosity.