given height, and velocity thrown upward, find air-time

whozum

The angle made with the ground is 90 degrees, not 0. Also, there is a change in final position, and you need to take it into account (hint: 30 should show up in your equation somewhere).

whozum	The angle made with the ground is 90 degrees, not 0. Also, there is a change in final position, and you need to take it into account (hint: 30 should show up in your equation somewhere).