# How much material do I need to fill a human mould?

• Nov 17th 2009, 02:31 AM
benny1979rat
How much material do I need to fill a human mould?
I need to work out how much material it will take to fill a human mould based on a certain set of figures that I have, and I don't know how to convert them.

The material covers 64.1m²/tonne @ a depth of 10mm.

The figures I have for the mould are: height 1.7m, and average diameter 0.82m (waist).

Please can someone show me how to work this out because I have worked it out to be 1.38t of material, and this seems rather high.

• Nov 17th 2009, 05:25 AM
CaptainBlack
Quote:

Originally Posted by benny1979rat
I need to work out how much material it will take to fill a human mould based on a certain set of figures that I have, and I don't know how to convert them.

The material covers 64.1m²/tonne @ a depth of 10mm.

The figures I have for the mould are: height 1.7m, and average diameter 0.82m (waist).

Please can someone show me how to work this out because I have worked it out to be 1.38t of material, and this seems rather high.

The density of the material is $1/(64.1 \times 0.01) \approx 1.56$ tonnes per cubic metre, the human body has a density of $\approx 1$ tonne per cubic metre, so the mass of meterial will be about $1.56$ times the mass of a human body $\sim 110-120$kg so yes your answer is high by something like an order of magnitude.

CB