So right when its crossing the wall, if we want it to just skim by or just hit the tip of the wall, our displacement vector, maybe I'll call it 'displacement necessary', when its 96 meters in the x direction - I just put this 'n' for necessary - when its 96 meters in the x direction, and I won't write the units now just for simplicity, when its 96 meters in the x direction it has to have and upward displacement of 10.3 meters in the y direction, so plus 10.3 times the 'j' unit vector, this is our necessary displacement.