1.How do you determine the cross-sectional area of the concrete and steel and the stresses in each if the column deforms .01 inch while carrying 100 K load? The cross sectional area is 15 inch and column height is 10 feet.
2.A parachute jumper weighs 200 pounds (including gear), has a parachute with an area of 200 square feet, and a coefficient of drag of 1.0. What is the highest downward speed (the terminal velocity), in miles per hour, that this jumper can attain? At the terminal velocity the downward force (the weight) is equal to the upward force (the aerodynamic drag force).