What would the volume of an object be?

[Realityguy]

Homework Statement

If you wanted to displace 2 gallons of water, what would the volume of the object need to be?

From there, what would the dimensions of an item need to be to match the required volume?

Homework Equations

The Attempt at a Solution

 

[inutard]

The question itself leaves much to think about as the displacement of water requires something of equal weight, not of equal volume. Therefore, the question itself has some fundamental flaws.

 

[theRIAA]

the answer is 2 gallons

 

[stongio]

Yes the "gallon" is a unit of volume. The dimensions of the object would depend on the shape of your object. If you really can't figure this one out yourself maybe you should reconsider going into the field of physics. 2 gallons is equivalent to 0.007570 cubic meters. From there it should not be very difficult to get your dimensions.

 

[inutard]

That is not exactly correct stongio. The question, as I've said, has some fundamental flaws. The question asks for the dimensions of "an item" of unknown density and structure. As such, it cannot really be solved. The answer '2 gallons' simply does not do the question justice.