Chapter 5, Problem 14P

Use bisection to determine the drag coefficient needed so that an 82-kg parachutist has a velocity of 36 m/s after 4 s of free fall. Note: The acceleration of gravity is $9.80{\text{m/s}}^2$. Start with initial guesses of $x_l=3\text{ and }{x}_u=5$ and iterate until the approximate relative error falls below 2%. Also perform an error check by substituting your final answer into the original equation.