Example
Where we do the math.
The Problem
Lets say that we are serving a ball overhand to the opposite court. We estimate our hand hitting the ball at about 10 degrees (theta) at 2 meters (H). The ball is landing in the middle of the opposite side. Also our good buddy times the serve and tells us the ball was in flight for 1.1 seconds.
So how fast was the initial serve?
overhand diagram
equations of projectile motion
example