Which is the air resistance formula?

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SUMMARY

The discussion centers on the air resistance formula, specifically the equation F_D=(C_D ρAv^2)/2, which is commonly used to calculate drag force. The conversation highlights the complexity of air resistance, noting that it varies based on multiple factors such as the object's shape and its velocity relative to the air. Participants express confusion regarding the correct application of these formulas and the variables involved. Ultimately, there is no single formula for air resistance, as it is contingent on specific conditions and parameters.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with drag coefficient (C_D) and its significance
  • Knowledge of variables affecting air resistance, such as velocity (v) and cross-sectional area (A)
  • Basic algebra skills for manipulating equations
NEXT STEPS
  • Research the derivation of the drag force formula F_D=(C_D ρAv^2)/2
  • Explore the impact of object shape on air resistance
  • Learn about the role of velocity in calculating drag force
  • Investigate real-world applications of air resistance in engineering and physics
USEFUL FOR

Students and professionals in physics, engineering, and aerodynamics who are looking to understand the principles of air resistance and its calculations.

Joroba3
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I'm trying to solve this ecuation:
Y_1=(-m)/2k((T-mg-kv^2)/(T-mg))
I'm having some truble at finding a correct formula to find the air resistance. In my research through Internet I found loads of different formulas but I don't exactly know which is the correct one. In an other discussion on this forum I found this formula:
F_D=(C_D ρAv^2)/2
However, as I just mentioned I don't have it very clear.
Thankfully,
Jacob
 
Physics news on Phys.org
your post is very confusing. Solve that equation for what variable? And is the question about "air resistance" a separate question? There is no one formula for air resistance- it depends upon a number of variables including the shape of the object moving through the air and its speed relative to the air.
 

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