1. The problem statement, all variables and given/known data Find the initial x velocity and initial y velocity. 2. Relevant equations vx0=vx 3. The attempt at a solution I tried putting 0 as both, but later realized that it has to have some initial x/y velocity or the graph would not curve upwards. I think that the initial y acceleration has to be negative because of the parabolic shape, but I don't know what the velocity is. :$ As for the initial x velocity, all I can figure out is that its constant.