Determine the buoyancy force acting on a stone with a volume of 0.2 m3 in water.

The buoyancy force of Archimedes will act on the stone in the water, which is equal to:
Fa = ρ * g * V, where ρ is the density of water (we take ρ = 1000 kg / m ^ 3), g is the acceleration of gravity (we take g = 9.8 m / s ^ 2), V is the volume of the submerged part of the stone (V = 0.2 m ^ 3).
Let’s calculate the buoyancy force of Archimedes:
Fa = ρ * g * V = 1000 * 9.8 * 0.2 = 1960 N = 1.96 kN
Answer: The buoyancy force of Archimedes is 1.96 kN.