Whenever you throw a football there will always be a parabolic path because the movement of the ball in the virticle direction is influenced by gravity. As a football travels up, gravity will slow it down until it reaches its peak, then it will stop briefly at that peak. Then the ball will start its acceleration back to the ground because of gravity. This path the football takes is called its projectile motion and here is a picture of what it looks like.
Some equations you can use for situations like this are
vf=vi+at
d=vit+1/2at^2
vf^2=vi^2+2ad
Ay=Asin0
Ax=Acos0
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