Final answer:
The buoyant force can be calculated using Archimedes' principle. For 2 liters of water displaced, the force is 19.62 N, so the closest answer is 20 N.
The correct option is A.
Step-by-step explanation:
The concept we are dealing with here is known as Archimedes' principle, which describes the behavior of objects when submerged in a fluid. According to this principle, the buoyant force acting on a submerged object is equal to the weight of the fluid displaced by the object.
For an object displacing 2 liters of water, we can calculate the buoyant force using the density of water and the acceleration due to gravity (9.81 m/s²). Density (1000 kg/m³) multiplied by volume (2 liters or 0.002 m³) multiplied by gravitational acceleration yields the weight of the displaced water, which is also the buoyant force.
Calculation:
Fb = ρ * V * g
Fb = 1000 kg/m³ * 0.002 m³ * 9.81 m/s²
Fb = 19.62 N
Therefore, the closest answer to the buoyant force acting on the object is 20 N, which corresponds to choice (a).
The correct option is A.