Compare the amount of kinetic energy that Roberto transferred to the surface of the water and why the outcome of the belly flop was different when leaping off of the diving board instead of the side of the pool. Use evidence and scientific reasoning to support your answer.

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.