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Stuid Question

  1. May 8, 2010 #1
    How many litres of air do i need to make 1kg of steel float?

    If you're wondering what for? i am actually trying to make a small jeep float... :smile:
  2. jcsd
  3. May 8, 2010 #2

    jack action

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    To support 1 kg of steel (or whatever material), you need to displace 1 kg of water. Density of water is 1 kg/l, so you need 1 liter of water displaced (it doesn't matter if it is air or anything else that displaces the volume of water).

    See http://en.wikipedia.org/wiki/Buoyancy" [Broken] for more info.
    Last edited by a moderator: May 4, 2017
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