I am suppose to find the density of a thick syrup-like liquid (does not disperse). The only information I have is that when a small portion is poured into a cup of unknown volume, it takes 5 seconds for it to reach the bottom. The cup has a height of 12 cm. I am not sure how to approach this problem. When I was doing a FBD, the only thing I can see to put on it is weight, and buoyancy, but I don't have a mass, volume, or density of the unknown heavy liquid. The only equation I have that has enough information to fill out is: pressure = (initial pressure) + (density)(gravity)(height) That would give me the pressure on the unknown liquid at the bottom, which I can't see how that helps me. With kinematics, I can find the deceleration necessary, but I can't find the buoyancy force because I don't have the mass. How should I start this problem?