A Ball Is Thrown Straight Up $h ( t ) = 20 t - 16 t ^ { 2 } + 10$

Short Answer

A ball is thrown straight up. Its height, in feet, at time t, in seconds, is represented by the equation $h ( t ) = 20 t - 16 t ^ { 2 } + 10$ . Determine the maximum height of the ball. (Hint: Consider the velocity of the ball at the moment the ball reaches its maximum height.)Enter just a reduced fraction of form $\frac { a } { b }$ . No units.