1. The problem statement, all variables and given/known data A projectile is launched horizontally with an initial velocity v0 from a height h. If it is assumed that there is no air resistance, which of the following expressions represents the vertical trajectory of the projectile? (A) h–gv0^2/2x^2 (B) h–gv0^2x^2 (C) h-gx^2/2v0^2 (D) h-gx^2/v0^2 2. Relevant equations d=vi*t+1/2a*t^2 3. The attempt at a solution t=d/v; a=g; d=vi*t+1/2g*(x/v)^2-->d=vi*t+(gx^2/2v^2)--->why is this subtracted from h? Also where does d=vi*t go?