It is known that the density of air is 1.29kg/m3, the average density of human body is equivalent to that of water, and the buoyancy of a person with a mass of 60kg in air is about - To explain the method, must be right, not misleading Oh, thank you

It is known that the density of air is 1.29kg/m3, the average density of human body is equivalent to that of water, and the buoyancy of a person with a mass of 60kg in air is about - To explain the method, must be right, not misleading Oh, thank you


Known: ρ air = 1.29kg/m3, ρ person = 1000kg / m3, m person = 60kg, g = 10N / kg
Find: F =?
∵ρ=m/V
Ψ V person = m person / ρ person
=0.06m3
And ∵ f = g row
=ρ gas GV exhaust
Ψ f = 1.29kg/m3 × 10N / kg × 0.06m3
=0.774N
A: the buoyancy is about 0.744n