- #1

Jbreezy

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## Homework Statement

A raft is constructed of wood having a density of 625 kg/m^3. It's surface area is 5.5 m^2, and it's volume is 1.5 m^3. When the raft is placed in fresh water (denistiy = 1000 kg/m^3), to what depth, h, is the raft submerged under the water?

## Homework Equations

P = ρgh

Where P = pressure, ρ = density

## The Attempt at a Solution

P = ρgh

Sub, F /A = P

F/A = ρgh

F = mg (g will cancel when we rearrange to solve for h)

m here is the mass of wood which is the density of wood times it's volume.

So, V x ρ_wood = M_wood.

Putting this all together.

And solving for h

M_wood / ( A(ρ_h20) = h

With values I got.

.1704 meters.

What do you think? Right wrong please confirm my process.

Thanks