So multiplied by one divided by a density of the particle, which is equal to this right over here. So we see that this product is simply the ratio of the densities of the fluid to our particle. Now, if the density of the fluid is equals the density of the particle, then this ratio is simply equal to one. And if this ratio is equal to one, then that means if the density of those two particles is if the density of the particle is the same at the density of the fluid, that fluid and that particle will not move with respect to one another. So if this ratio is equal to one, that particle will not move inside the fluid because their densities are equal. So remember, from physics we know that an object will float or an object will sink.