Which object has a higher drag coefficient at 10 m/s: golf ball or basketball?

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SUMMARY

The discussion centers on the drag coefficients of a golf ball and a basketball moving at 10 m/s. The conclusion is that the drag coefficient (Cd) of the basketball is lower than that of the golf ball due to its shape and surface characteristics. The formula used for calculating drag coefficient is Cd = (2Fd)/(ρv^2A), where Fd is the drag force, ρ is the air density, v is the velocity, and A is the cross-sectional area. The golf ball, with its dimples, has a higher Cd compared to the smoother surface of the basketball.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with the drag coefficient concept
  • Knowledge of the equation for drag force
  • Basic physics concepts related to motion and forces
NEXT STEPS
  • Research the impact of surface texture on drag coefficients
  • Learn about experimental methods for measuring drag coefficients
  • Explore the effects of shape on aerodynamic properties
  • Study the differences in drag coefficients among various sports balls
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Physics students, engineers, and sports scientists interested in aerodynamics and the performance characteristics of sports equipment.

XwakeriderX
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Homework Statement


A golf ball and a basketball are both moving through the air at 10 m/s. Which has the higher drag coefficient?
a. The golf ball's drag coefficient is much higher.
b. The basketball's drag coefficient is much higher.
c. Both drag coefficients are about the same!


Homework Equations



Cd= (2Fd)/(ρv^2A)

The Attempt at a Solution


Since the basketball has a larger area that would make the denominator larger which makes the Cd smaller?
 
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XwakeriderX said:
Cd= (2Fd)/(ρv^2A)

Since the basketball has a larger area that would make the denominator larger which makes the Cd smaller?
No. The drag factor is largely experimentally determined as generally a function of shape but not generally a function of size. Bullets, birds, and planes have low Cd factors. Flat surfaces have large Cd factors.
 

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