1. Problem 8.3 from your textbook (10 pts). You will have to show the following: a) Expression for the drag force F. Hint: This comes from Tw, but it must be integrated along x (the flow direction) to account for the total F. b) Expression for vxo. Hint: This should come from a momentum balance in which the drag forces are equaled to the gravitational forces that move the fluid down the drain. c) A numerical solution for Vxo based on the above expression.