Physics pressure/density question

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SUMMARY

The discussion centers on calculating the water pressure on the base of a wooden cube with a side length of 4.0 cm, which floats with one quarter of its volume above the water surface. The water pressure can be determined using the formula P = ρgh, where ρ is the density of water (1000 kg/m³), g is the acceleration due to gravity (9.81 m/s²), and h is the height of the cube submerged. Additionally, the density of the wood can be calculated based on the volume of water displaced. For olive oil, with a density of 920 kg/m³, the fraction of the cube's volume that would be immersed can be derived from the ratio of the densities.

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Physics "pressure/density" question

Homework Statement



A cube of wood of side 4.0 cm floats in fresh water with one quarter showing above the surface.

a.i.) Calculate the water pressure on the base of the cube
a.ii.) Calculate the density of the wood

b.) What fraction of the volume of the cube would be immersed if it was floated in olive oil?

Homework Equations



Olive oil = density/kg m -3 of 920.
 
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You are supposed to show an attempt at a solution first, people will not simply solve the question for you...

If you are having trouble finding where to start think about the total amount of water being displaced. If it hadn't been displaced what could you have been able to say about the forces acting on it??

-Spoon
 

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