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Buoyant force of air negligible?

  1. Mar 23, 2012 #1
    Buoyant force of air negligible??

    Why are we justified in assuming that the buoyant force on an object in air is generally negligible. Can you please explain using some example equations?

    Many thanks.
    Last edited: Mar 23, 2012
  2. jcsd
  3. Mar 23, 2012 #2

    Doc Al

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    Staff: Mentor

    Re: Buoyant force of air negligible??

    Depends on the weight of the object and how accurate you need to be. Why not calculate the buoyant force on something and compare it to that something's weight.
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