Overview
From the top of a building of height h = 100 m I throw a stone up with velocity 10 m/s. What is the maximum height it reaches, and when does this occur? How many seconds does it spend on its way down between h = 50 m and h = 0 m? What is its velocity when h = 50 m? If, while the stone is airborne, an earthquake opens up a hole 50 m deep in the ground, when and with what speed will the stone hit the bottom?