How to calculate rate at which a carpet can absorb liquid?a

[Elvis 123456789]

Homework Statement

I am trying to figure out how to calculate the rate at which a piece of carpet can absorb a liquid such as water or oil. This is for a real life project. I thought that maybe I could use related rates to solve for the rate of volume increase in the carpet if it was rectangular, but I I'm am not really sure if the volume of the carpet even increases when it absorbs a liquid. I want a solid way to calculate this mathematically but I'm not sure if this is the way?

Homework Equations

The Attempt at a Solution

 

[ehild]

Homework Statement

I am trying to figure out how to calculate the rate at which a piece of carpet can absorb a liquid such as water or oil. This is for a real life project. I thought that maybe I could use related rates to solve for the rate of volume increase in the carpet if it was rectangular, but I I'm am not really sure if the volume of the carpet even increases when it absorbs a liquid. I want a solid way to calculate this mathematically but I'm not sure if this is the way?

Try to measure change of mass.