Relationship between Drag Force and Wind Speed

AI Thread Summary
The drag force experienced by an object is influenced by the relative velocity between the object and the fluid, such as air. Wind indeed affects drag force by altering the velocity of air particles, impacting the overall drag experienced by the object. Both Newtonian physics and Special Relativity support the idea that drag force is dependent on this velocity difference. Testing in wind tunnels demonstrates that it is the relative motion, regardless of whether the object or fluid is moving, that determines drag. Understanding this relationship is crucial for optimizing vehicle designs for performance.
GuMing
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The drag force can be affected by the velocity of the object relative to the fluid. Does that mean the wind affects the drag force, since it changes the velocity of air particles?
 
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There's no reason it doesn't. In fact, as predicted by Newtonian and Special Relativity, there are pretty much identical situations.
 
GuMing said:
The drag force can be affected by the velocity of the object relative to the fluid. Does that mean the wind affects the drag force, since it changes the velocity of air particles?
Drag force depends on the velocity difference between fluid and object. It doesn't matter which is moving. Planes and cars are tested in wind tunnels, where the air is moving instead of the vehicle.
 

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