b]1. The problem statement, all variables and given/known data[/b] 1. Two seconds after being projected from ground level (y=0 m), a projectile is displaced x=40 m horizontally and y=53 m vertically above its launch point. What are the (a) horizontal and (b) vertical components of the initial velocity v of the projectile? (c) At the instant the projectile achieves its maximum height above ground level, how far is it displaced horizontally from the launch point? 2. Relevant equations 3. The attempt at a solution I am working on part a). I was able to determine the horizontal component; however, I am unable to ascertain the vertical component of velocity. I tried applying kinematic equations, but with no avail. I tried to employ a symmetry argument, by finding the velocity acquired as the projectile falls to earth from a vertical distance of 53 m, but then I realized that I don't know the velocity at this point, nor can I suppose that the speed is zero, because it isn't. What should I do?