Question

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.

Answer 1

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

Answer 2

it is telling me its wrong

Answer 3

1.5 N