How Is Pressure Calculated Underwater?

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To calculate pressure underwater, the formula used is pressure = (density of water)(g)(h), where g represents gravitational acceleration at 9.81 m/s². For a depth of 25.0 m in fresh water, the pressure can be calculated by multiplying the water density (1000 kg/m³) by gravitational acceleration and the depth. This results in an additional pressure of 245,250 Pa, which, when combined with normal air pressure (1.013 x 10^5 Pa), totals approximately 345,250 Pa or 3.4 atm. Understanding these calculations is crucial for physics problems related to fluid pressure. Mastery of these concepts will aid in test preparation and practical applications.
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Homework Statement


The density of fresh water is 1000 kg/m3. Normal air pressure (i.e., 1 atm) is 1.013(105) Pa. If someone were beneath 25.0 m of water, what pressure would they experience? Give your answer in Pascals and in atmospheres.




Homework Equations



i guess the (density of water)(g)(h)

The Attempt at a Solution



I know its sad... but wat does g stand for? i missed 1 week of class and i have a test 2moro! please help! thanks
 
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g = 9.81 [m/s^2] = gravitational acceleration. :smile:
 
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