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 9.81 m/s2. Start with initial guesses of xl = 3 and xu = 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.