1. The problem statement, all variables and given/known data A rifle bullet is fired from the top of a cliff at an angle of 30° below the horizontal. The initial velocity of the bullet is 800 m/s. If the cliff is 80 m, high, how far does it travel horizontally? θ = 30° v0 = 800 m/s y = 80 m 2. Relevant equations I may be totally off here with these equations (I'm part of an independent study program and their physics curriculum doesn't even have an online teacher, so I've been flying blind since day one), but I think these are relevant: vy = Vsinθ |v| = √vx2 + vy2 3. The attempt at a solution vy = 800sin30 = 400 800 - 400 = 400 = vx I then thought I could go from there to solve for x using x = x0 + v0xt + 1/2at2, but I don't have anything for t, so I'm stuck.