1. The problem statement, all variables and given/known data A cannon fires a cannonball 500.0 mdownrange when set at a 45 degree angle. At what velocity does the cannonball leave the cannon? 2. Relevant equations Vix=Vi X cosθ Viy=Vi X sinθ Tair=viy/a X 2 D=1/2 X at2 D=vt 3. The attempt at a solution If i decide to use d=1/2 X at2 will the acceleration be 0? or 9.81? Because isnt the acceleration 0 here because the x component has no acceleration? But that makes no sense at all because the result would have to be 500m. And 9.81 is the y component acceleration. So i not sure.