Final answer:
The force of gravity on an object submerged under fluid can be determined using Archimedes' principle. By measuring the apparent weight loss of the object when submerged, the force of gravity can be calculated.
Step-by-step explanation:
The force of gravity on an object submerged under fluid can be determined using Archimedes' principle. Archimedes' principle states that the buoyant force on an object equals the weight of the fluid displaced. This means that the object appears to weigh less when submerged in a fluid, and the apparent weight loss is equal to the weight of the fluid displaced.
To calculate the force of gravity, you can measure the apparent weight loss of the object when submerged in the fluid. By subtracting the weight of the fluid displaced from the object's actual weight in air, you can determine the force of gravity on the object.
For example, if you have a coin that is weighed in air and then weighed again while submerged in a liquid, you can calculate its density if the fluid density is known. This same technique can also be used to determine the density of the fluid if the density of the coin is known.