Determine the buoyancy for a 1.6m3 stone in seawater.

The buoyant force of Archimedes will act on a stone in seawater, which is equal to:
Fa = ρ * g * V, where ρ is the density of seawater (we take ρ = 1030 kg / m ^ 3), g is the acceleration of gravity (we take g = 10 m / s ^ 2), V is the volume of the submerged part of the stone ( V = 1.6 m ^ 3).
Let’s calculate the buoyancy force of Archimedes:
Fa = ρ * g * V = 1030 * 10 * 1.6 = 16480 H = 16.48 * 10 ^ 3 H = 16.48 kN.
Answer: The buoyancy force of Archimedes is 16.48 kN.