A brick immersed in water is subjected to a buoyant force equal to 20 Newtons. what is the volume of the brick.

The buoyancy force of Archimedes will act on a brick in water, which is equal to:
Fа = ρ * g * V, where Fа is the value of the Archimedes force (Fа = 20 N) ρ is the density of water (we take ρ = 1000 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 brick (m ^ 3).
Let’s express and calculate the volume of the brick:
V = Fa / (ρ * g) = 20 / (1000 * 10) = 0.002 m ^ 3.
Answer: The volume of a brick is 0.002 m ^ 3.