You've setup your safety switch. Now to position the cannon!
You have a toy cannon wired up to the safety switch and loaded with a very special cargo. Your target is across the room.
The target has to be placed 28 meters away. You also know that the initial velocity out of the cannon is
20 m/s. Assume that both the cannon and the target are at the same height.
What angle from the horizontal does the cannon need to be at to make the shot into the target zone?