Calculating force of Air Resistance

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SUMMARY

The calculation of air resistance for a bicycle using the formula Fd = 1/2 * p * v^2 * A * Cd is confirmed to be accurate. In this case, with parameters p = 1.3 kg/m³, v = 13.44 m/s, A = 1.15 m², and Cd = 0.9, the resulting force of air resistance is 121.52 Newtons. The formula and algebra used are correct, provided that the values for drag coefficient (Cd) and frontal area (A) are accurate.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with the drag equation
  • Basic algebra for solving equations
  • Knowledge of units of measurement in physics
NEXT STEPS
  • Research the impact of varying drag coefficients (Cd) on air resistance
  • Explore how frontal area (A) affects aerodynamic drag in cycling
  • Learn about the effects of different speeds on air resistance calculations
  • Investigate methods to reduce air resistance in bicycle design
USEFUL FOR

Cyclists, engineers, and physics students interested in understanding and calculating air resistance in cycling scenarios.

gearhead
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I'm having a little trouble calculating the force of air resistance for a bicycle.
The formula I used is: Fd=1/2pv^2ACd .
p= 1.3kg/m^3
v= 13.44 meters/sec.
A= 1.15 meters^2
Cd= 0.9
I got an answer, but I don't know if it is correct, can someone please verify?I got 121.52 Newtons.
 
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gearhead said:
I'm having a little trouble calculating the force of air resistance for a bicycle.
The formula I used is: Fd=1/2pv^2ACd .
p= 1.3kg/m^3
v= 13.44 meters/sec.
A= 1.15 meters^2
Cd= 0.9
I got an answer, but I don't know if it is correct, can someone please verify?I got 121.52 Newtons.
The formula is correct, and so is your algebra. The answer is correct for a speed of 13.44m/s PROVIDED that you are using the correct value for Cd and A. Were they given to you?
 
yes, they were given, thanks, i just wanted to make sure because i have no frame of reference to compare the answer i got to.
 

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