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Drag Force on a Streamlined Body

  1. Oct 27, 2013 #1

    I know that the drag force on an object: Fd= 1/2 . ρ . v^2 . Cd . A

    where A is the reference area.

    But in the case of a streamlined body, I don't know what will be taken as the reference area. Should it be the largest cross-sectional area of the body?
  2. jcsd
  3. Oct 27, 2013 #2
    Oh sorry, in this case I'm talking about drag force caused by air resistance
  4. Oct 27, 2013 #3
    Yes, the cross section area as seen from the direction of the wind
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