A thin plate is moving vertically between two parallel places wich a constant velocity of 20 m/s….


A diluted extract is tender vertically betwixt two parallel places wich a firm speed of 20 m/s. The remoteness betwixt the boundaries is 0.5 cm and the extract moves at a remoteness of 0.2 cm from one policy of the boundaries. If the area of the extract is 1 m2 and µ, = 0.08 suspend, perceive the weight and heap of the extract.