If the diver's initial vertical velocity is negative 5 feet per second-- so he's going downward, so they tell us right here-- 5 feet per second downward, and the acceleration of gravity is negative 32 feet per second squared, or 32 feet per second downward-- so that means after every second, you're going 32 feet per second faster in the downward direction-- how long is the diver in the air before entering the water?