And the last step is, well, our goal is to make this equation look like the right side of this equation. So notice that the right side of this equation has m one V bar Rho and F, but it doesn't have the omega and R. So we want to bring the omega squared multiplied by R to the other side. Of the equation, and we basically obtain so we have v divided by omega squared r is equal to m one minus v bar rho divided by f. And so this right side of this equation is the same as the right side of this equation. So we see, because they're equal, we see that s, the sedimentation coefficient is equal to v, the velocity of that object divided by Omega squared, where Omega is the angular velocity multiplied by r, where r is this distance right over here. So we see that s is equal to v divided by Omega squared r, which is equal to m one minus v bar row divided by F. And this is basically our derivation. Now, sometimes we express this in a slightly different way.