A rock is thrown upward from the top of a 25 foot tower with an initial upward velocity of 100 ft/sec. Write an equation that models the height of a rock above the ground as a function of time. (Vertical Motion Equation: h(t)=-16t^{2}+vt+sh(t)=−16t 2 +vt+s) What is the maximum height the rock reaches? How long does it take the rock to reach the maximum height?