Posted by **C** on Saturday, March 31, 2012 at 9:26am.

Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1000 N, for example.

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**Elena**, Saturday, March 31, 2012 at 1:43pm
Density of man is D = 1000 kg/m^3,

m•g =V•D•g = 1000 N

The man's volume

V = 1000/( D•g) =1000/(1000•9.8) =0.1020408 m^3

Density of air d = 1.2929 kg/m^3

The buoyant force is equal to the weight of the air

displaced by the man

F =V•d•g =0.1020408•1.2929•9.8•1.2929 N

- physics -
**Kristie**, Sunday, April 1, 2012 at 10:44pm
it is telling me its wrong

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