Time taken by the soccer ball in the air when we neglect the air resistance is 2.75s
projectile motion - It is the motion of an object which projected into the air  and moving under the gravity.
a soccer ball is kicked at an angle of 64° to the horizontal
initial speed = 15 m/s
Initial velocity in vertical direction is given as
[tex]V_{v} = V_{0}sin \theta[/tex]
[tex]V_{v} = 15sin(64)[/tex]
[tex]V_{v}[/tex] = 15× 0.8987
  = 13.48m/s
time taken to reach the maximum height is given by
T =[tex]V_{v}[/tex] /g
where
[tex]V_{v}[/tex] Â is the velocity
g is the gravity
Ball comes downward with the same speed
then that time period is given by.
2[tex]V_{v}[/tex] /g
= 2× 13.48 /9.8
T = 2.75s
Time taken by the soccer ball in the air when we neglect the air resistance is 2.75s
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