What Is the Pressure on an Object 10m Below Sea Level?

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SUMMARY

The pressure at the water surface (P) is 101325 Pa, which is the standard atmospheric pressure. At a depth of 10 meters below the surface (Q), the pressure exerted by the seawater, with a density of 1150 kg/m³, is calculated using the formula Pressure = Force/Area. The total pressure on the top surface of the box at this depth is 201325 Pa, which includes both the atmospheric pressure and the hydrostatic pressure due to the water column above the box.

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laura297
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1. An underwater diver swims from the water surface P down to the seabed Q. He is cleaning the sea from unwanted object such as a box.

a) What is the pressure at the water surface P??

b) The box is 10m below the surface P and the density of the sea water is 1150kg/m(cubed). What is the pressure of the sea water on the top surface of the box?



2. Well the only equation i know is Pressure = Force/Area



The Attempt at a Solution


 
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Welcome to PF!

Hi Laura! Welcome to PF! :smile:
laura297 said:
The box is 10m below the surface P and the density of the sea water is 1150kg/m(cubed). What is the pressure of the sea water on the top surface of the box?
…
Well the only equation i know is Pressure = Force/Area

Draw the box, with a column of water on top of it, stretching all the way to the surface …

what is the weight of the column of water …

so what is the force on the box …

then use Pressure = Force/Area :wink:
 


tiny-tim said:
Hi Laura! Welcome to PF! :smile:


Draw the box, with a column of water on top of it, stretching all the way to the surface …

what is the weight of the column of water …

so what is the force on the box …

then use Pressure = Force/Area :wink:


Thanks a lot =]:biggrin:
 

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