1. The problem statement, all variables and given/known data During the opening kickoff of a college football game, the kicker kicks a football with an initial velocity of 27.5m/s at an angle of 41 degrees above horizontal. What is the flight time for the ball? What is the maximum height How far does it travel before hitting the ground? 2. Relevant equations The 4 acceleration equations 3. The attempt at a solution What I know(I'm using components in the by the way) Here's a very lame image of what I think the problem looks like http://desmond.imageshack.us/Himg580/scaled.php?server=580&filename=forgivemefather.png&res=medium [Broken] V1x = 27.5m/s cos41 degrees Ay = -9.80 V1y = 27.5m/s sin41 degrees V2y = 0(Please tell me if this is wrong) V2x = 27.5m/s cos41 degrees Need Dx Need Dy Need time I found Dy already using the V2y^2 = V1y^2 + 2aΔd equation and rearanging it to solve for Δd I got 16.6 for the maximum height Now I'm trying to find the time, I thought I would be able to do this by rearanging V2 = V1 + aΔt to solve for time It comes out like this t = v1x - v2x/a As you can see this already doesn't work as I'm gonna end up with 0 regardless, and it definately doesn't take 0 seconds for the ball to hit the ground. I tried finding out Dx but that wasn't possible(or I'm rearranging wrong) What made Dy so easy was that V2y was 0 so rearanging it was simple. But because V1x and V2x are the same rearanging it makes me run into the same problem as when trying to find out time.