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

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The pressure at the water surface is typically atmospheric pressure, approximately 101,325 Pa. At 10 meters below the surface, the pressure exerted by the seawater can be calculated using the formula Pressure = Force/Area, where the force is derived from the weight of the water column above the box. Given the density of seawater at 1150 kg/m³, the pressure on the top surface of the box can be determined by calculating the weight of the water column. The discussion emphasizes understanding the relationship between pressure, force, and area in underwater scenarios. Overall, the key focus is on calculating the pressure experienced by an object submerged in seawater.
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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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