Abaseball is thrown into the air with an upward velocity of 25 ft/sec it's height in feet after t seconds can be modeled by the function h(t)=16t +25t +5 algebraically determine how long it will take the ball to reach its maximum height ? what is the ball's maximum height

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min