# Coffee filter experiment: time as a function of mass

In an experiment I performed, I dropped $n$ amount of coffee filters from a constant height and recorded the time $t$ taken for the $n$ coffee filters to reach the ground. In the experiment, the value of $n$ was kept as small as possible. I assumed that the coffee filters reached their terminal velocity directly (for simplicity).

I tried to find a relation between the no. of coffee filters and the time taken for these coffee filters to reach the ground.

I am very certain that $t(n) \propto n^{k}$, however, I am not sure which value the constant $k$ should have. The closest I got was $k=-1/4$.

Does anyone know if my $k$ has a reasonable value?

EDIT: the equation I get in MS Excel when I plot the data directly is: $t(n)=3.2108n^{-0.295}$, where $k=-0.295$. I think I need to find what fraction this value is close to.

EDIT2: I discovered that this value is close to $1/3$. The $R^2$ value is closer to $1$.

The mass of a coffee filter was $2g$, so time can be expressed in terms of mass also.