- #1
PascalPanther
- 23
- 0
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?
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?