Just like in class, we are calculate someones maximum height reached during a vertical jump by using simple math. When Will leaves the ground his vertical acceleration stays -9.81m/s^2 (air resistance neg.) throughout his entire duration in the air. I also know that will was in the air for about .64 seconds. But, when solving we cut the time in half because we only need to look at his ascent or descent. Knowing this I am able to calculate Will's maximum height while he was in the air. When will reached his peak height, he was about .502 meters above the ground.