Question

What is the pressure in Pascals at a depth of 1m below the water surface? atmospheric pressure at sea level is 100 kPa, g= 9.8 m/s^2 ​

Answer 1

Answer:

9800

Explanation:

9800 Pascal's hense pressure at 1 m deptn will be 9800 Pascal's

Answer 2

Answer:

The pressure at a depth 1m below water surface is 109810Pa.

Explanation:

Given that,

Atmospheric pressure at sea level is $P_{a}=100kPa$

Acceleration due to gravity is $g=9.8m/s^2$

Depth below surface is $h=1m$

Density of water is $\rho=1000kg/m^3$

We are required to find the pressure at a depth 1m below water surface.

The absolute pressure at a depth h is given by the relation

$P=p_{a}+\rho gh$

Substituting the known value sin above relation we get

$P=100000Pa+(1000)(9.81)(1)\\=100000+9810=109810Pa$

Therefore,

The pressure at a depth 1m below water surface is 109810Pa.

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