[SOLVED] Horizontal ProjectileMotion 1. The problem statement, all variables and given/known data Divers jump off a cliff, at a height of 35m above sealevel. To land safely, they aim for 5m from the base of the cliff. What push off speed is neccesary? Sy= -35m Sx= 5 ay= -9.8m/s/s Vi = ? 2. Relevant equations Not sure how to proceed, if Vfy = 0 at the end of the motion, then vf^2 = vi^2 + 2a(s) 3. The attempt at a solution Adds up to vi = 0, unless I really screwed up my math.