Buoyancy force

An adult male has a volume of about 0.070 m3. How much buoyancy does it affect him when he is completely immersed in water?

Correct answer:

F =  686.7 N

Step-by-step explanation:

V=0.07 m3 g=9.81 m/s2 ρ=1000 kg/m3  m=ρ V=1000 0.07=70 kg F=m g=70 9.81=686.7 N

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