Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Air Resistance Constant

  1. Feb 25, 2005 #1
    Hey im just wondering about something, air Resistance is proportional to the velocity in some cases or velocity squared in others.

    dV/dt=kv what is a typical constant for k, i know it varies so lets just say a baseball at sea level(im sure you all can guess why im asking this.... :smile: ) Also is there a way to calculate this "k"...
    any help greatly appreciated thanks!
     
  2. jcsd
  3. Feb 26, 2005 #2
    It depends very much on the shape and texture of objects, if you use the formula [tex]D = \frac{1}{2}CA\rho v^2[/tex]. For a spherical body like the baseball it should be around 0.5.
    Have a look here also: http://www.ac.wwu.edu/~vawter/PhysicsNet/Topics/Dynamics/Forces/DragCoeficientValues.html [Broken] for a table of constants.
     
    Last edited by a moderator: Apr 21, 2017 at 12:47 PM
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Air Resistance Constant
  1. Air Resistance (Replies: 6)

  2. Air Resistance (Replies: 6)

Loading...