What is the maximum height that the object of Problem 23 reaches? On the surface of the

Question:

What is the maximum height that the object of Problem 23 reaches?
On the surface of the moon, the acceleration of gravity is -5.28 feet per second per second. If an object is thrown upward from an initial height of 1000 feet with a velocity of 56 feet per second, find its velocity and height 4.5 seconds later.