Does Air Resistance Alter Optimal Projectile Launch Angles?

AI Thread Summary
The optimal launch angle for a projectile is typically 45 degrees for maximum range, but this changes with air resistance. Air resistance affects the projectile's motion in both vertical and horizontal directions, complicating the trajectory. Factors such as launch height and air density at different altitudes also influence the optimal angle. The modeling of air resistance is crucial, as it is often velocity-dependent, leading to complex equations for projectile motion. Understanding the definition of "optimal projection" is essential, as it may refer to either maximum distance or height.
rdavis47
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We all know that 45 degrees is the optimal angle for range when launcing a projectile:

Does this angle change when adding air resistance?

If you know the answer please respond,

If you don't, please go away

rydogg
 
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No. Air resistance slows you in all directions.

But if you are doing something like launching from a higher or lower ground, then it changes.
 
In reality it is more complicated than that. Air density changes with height, the higher you fly, the less resistance you meet. Thus the projectile doesn't flow in the constant conditions, which is especially important when targeting far objects (like 30 km range).
 
Depends on how you model the air resistance... while it will be acting both vertical and horizontal, it's frequently modeled as being velocity dependent. With air resistence, the velocity in both directions will be changing... so you get fun equations to solve along both directions for the ultimate motion of the projectile. Also -- what do you mean by "optimal projection"? Furthest distance? greatest height?
 
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