Hayden is standing on a ledge that is 32 feet above a mountain stream. At time t = 0, he jumps from the ledge into the water below. Hayden's position at any time t 0 can be modeled by the function s(t)=-16t + 16t + 32, where s is measured in feet, and t is measured in seconds. A. When does Hayden hit the water? B. What is Hayden's velocity at impact?