Suppose a stone is thrown vertically upward with an initial velocity of 64ft/s from a bridge 80ft above a river. The position of the stone after t seconds is s(t) = -162t2 + 64t + 80 feet. 1. (4 points) Find the velocity and acceleration functions of the stone. Include units in your answer. Velocity Acceleration 2. (4 points) When does the stone reach its maximum height? Include units in your answer. 3. (2 points) What is the maximum height of the stone? Include units in your answer. 4. (4 points) When will the stone strike the river? Include units in your answer. 5. (2 points) With what velocity will the stone strike the river? Include units in your