Projectile Motion: Comparing Actual vs Theoretical

[Demson]

the yellow is an actual projectile motion from a soccer ball thrown in the air and the blue is a theoretical projectile motion with the same initial velocity and angle of projection calculated from the actual.

How is air resistance affecting the actual projectile (yellow) according to the graph below?

cheers
Demson

 

[dave_baksh]

Air resistance should decrease both the horizontal and vertical distances travelled, so in terms of the horizontal, your graph makes sense. However, the yellow line appears to be higher than the blue which could be caused by spin of the ball, which causes an upwards lift.

 

[Demson]

Air resistance should decrease both the horizontal and vertical distances travelled, so in terms of the horizontal, your graph makes sense. However, the yellow line appears to be higher than the blue which could be caused by spin of the ball, which causes an upwards lift.

coolio thanks