Projectile Motion: Comparing Actual vs Theoretical

In summary, air resistance affects the actual projectile (yellow) by decreasing both the horizontal and vertical distances traveled. However, the yellow line appears to be higher than the blue, which could be due to spin of the ball causing an upwards lift.
  • #1
Demson
5
0
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?

graph.jpg


cheers
Demson
 
Last edited:
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  • #2
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.
 
  • #3
dave_baksh said:
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
 

FAQ: Projectile Motion: Comparing Actual vs Theoretical

What is projectile motion?

Projectile motion is the motion of an object through the air that is subject to only the force of gravity. It follows a curved path called a parabola and can be described by its initial velocity, angle of launch, and the force of gravity.

What is the difference between actual and theoretical projectile motion?

Theoretical projectile motion is based on mathematical equations and does not take into account external factors such as air resistance. Actual projectile motion takes into consideration these external factors and may deviate from the theoretical path.

How is actual projectile motion compared to theoretical projectile motion?

To compare actual and theoretical projectile motion, the actual path of the object is measured and compared to the predicted path based on theoretical calculations. This can be done through experiments or simulations.

What factors can affect the accuracy of comparing actual and theoretical projectile motion?

Factors such as air resistance, wind, and the shape of the object can affect the accuracy of comparing actual and theoretical projectile motion. Other external factors such as temperature and elevation can also play a role.

Why is comparing actual and theoretical projectile motion important in science?

Comparing actual and theoretical projectile motion allows for a better understanding of the laws of motion and gravity. It also helps to improve the accuracy of predictions and calculations in various fields such as physics, engineering, and sports.

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