If a piece of steel and a piece of aluminum of the same volume are dropped into water, what can be said about the buoyant force acting on each of them?

More on the iron
More on the aluminum
The same on both
Not enough information

Question

If a piece of steel and a piece of aluminum of the same volume are dropped into water, what can be said about the buoyant force acting on each of them?


	        More on the iron
		More on the aluminum
		The same on both
		Not enough information

anonymous · Answer

The buoyant forces are the same on both.

The magnitude of the buoyant force is given by
$$F_{B}= \rho Vg$$or in other words, the weight of the fluid DISPLACED.

The two objects displace the same volume of fluid, so the weight of the fluid displaced in each case is the same; hence, the buoyant forces are the same.

anonymous · Answer

normally it depends on density but since it is the same volume the buoyancy force should be the same

anonymous · Answer

pressure=weight denisty*depth. so if they have the same volume same weight denisty, same depth same buoyancy force :)