Soccer player kicking a penalty kick from a distance of d = 25 mA wants to intervene place
which is at a height h = 2.40 m above the ground.
a) What is the minimum speed must give the ball to hit the selected location? what
while the elevation angle must choose and what time will the ball fly?
b) Under what angle must kick the ball to hit the site selected for initial
ball velocity v0 = 18 m · s-1, and in so doing, the ball flight duration was the shortest?
Dimensions of ball and resistance of the environment is negligible.
