Floating a Jeep: How Many Litres of Air?

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SUMMARY

To make 1 kg of steel float, you need to displace 1 kg of water, which equates to 1 liter of water. The principle of buoyancy dictates that the volume of water displaced must equal the weight of the object to achieve flotation. This discussion emphasizes that the medium used for displacement, whether air or another substance, is irrelevant as long as it displaces the required volume. For further details, refer to the buoyancy principles outlined on Wikipedia.

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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:
 
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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" for more info.
 
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