how do i determine the volume needed to hold something if i only know how much it weighs?

Question

well could you possibly help me find the answer?

Answer 1

You would have to know it's density. Density is measured in weight unit per square area unit. You may be able to look up the materials density if it is a pure material (ex. it's all made of wood).

If you know it's density, all you do is make sure that the units are the same, and take the weight of the object and divide it by the density.

Answer 2

You need the density, or weight per volume, of the substance it's made of.
Then you can calculate the volume it displaces, from the weight.
Weight divided by density = volume

Answer 3

By its density. Density is an intrinsic property of a substance at a certain temperature.

For example water:
At 4°C pure water has a density (weight or mass) of about 1 g/cu.cm, 1 g/ml, 1 kg/litre, 1000 kg/cu.m, 1 tonne/cu.m or 62.4 lb/cu.ft

Since density is equal to mas over volume.

Density = Mass / Volume

Then

Volume = Mass / Density

Since Weight is equals to Mass times gravity

Weight = Mass x gravity (9.8 m/s^2)

Therefore you get the equation.

V = W / (D x g)

Answer 4

You cannot solve this problem without more information. Obviously a pound of lead takes up less volume than a pound of marshmallows. So, for now, you cannot find the answer.

Answer 5

If you know how much it weighs, and if you know its density, you can calculate its volume, V = W/D

Densities of most materials are known.