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Re: [Phys-l] Linear Air Drag

From: Bernard Cleyet <bernardcleyet@redshift.com>
Date: Mon, 2 Nov 2009 22:11:25 -0800

The Reynolds number for water droplets (e.g. in clouds) is within the limit for viscous (Stokes') drag.

However, BW is quite correct (I pray!) for the usual projectiles. Intermittent updraft in a cloud is the only case ICTO where Peter's work would be applicable. Well, one could w/ a submerged spring gun fire a bb up a cylinder of oil. Remember to include buoyancy!

bc must write to the "The Physics Teacher".

p.s. v^3 if extreme. Drag is not a simple function of speed.

On 2009, Nov 02, , at 19:19, Brian Whatcott wrote:

Hmmm. I'm puzzled by the concept of linear air resistance.
Air drag for projectiles is a function of v squared.

Follow-Ups:
- Re: [Phys-l] Linear Air Drag
  - From: "LaMontagne, Bob" <RLAMONT@providence.edu>
- Re: [Phys-l] Linear Air Drag
  - From: Carl Mungan <mungan@usna.edu>

References:
- Re: [Phys-l] motion problem
  - From: Bernard Cleyet <bernardcleyet@redshift.com>
- [Phys-l] research project--software-based homework systems
  - From: "Price Daniel S." <dprice@jeffco.k12.co.us>
- Re: [Phys-l] research project--software-based homework systems
  - From: "David E. T. Clark" <declark@maine.edu>
- Re: [Phys-l] research project--software-based homework systems
  - From: "David E. T. Clark" <declark@maine.edu>
- [Phys-l] Linear Air Drag
  - From: Peter Schoch <pschoch@nac.net>
- Re: [Phys-l] Linear Air Drag
  - From: Brian Whatcott <betwys1@sbcglobal.net>

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