|Feb3-04, 08:41 PM||#1|
Pressure and depth problem
I would like someone to tell me the steps for working out this problem. Specifically I would like to know the Equations needed to use for the problem.
Here is the problem. It seems very simple, but I seen to get lost in converting SI Units and then I get confused.
A Piece of wood is 2cm X 4cm X 2mm. It has a density of 450 kg/m/m. To what Depth will it sink in water?
Anyhow, I dont know exactly what to do. I found the Volume in Meters but I have no clue if it is correct. So I then found the mass from the Density and Calculated Volume. I plug the Volume in the Bouyant Force Equation, then I find the Force of weight of the object. What do I do next? Do I find the apparent Force and divide it by Volume? I have no Idea how to find the Depth. I would like a good Explanation as well. Thanks.
|Feb4-04, 05:12 AM||#2|
Is density 450kg/m^3?
We don't know your object's rotation? On which side is it sinking?
As you will see the volume under water is the same no matter its rotation.
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