How to find the water pressure if the area and weight are known?
August 23, 2021 | education
| Given:
s (square meter) – the area of the bottom of a vessel filled with water;
F (Newton) is the weight of the water in the vessel.
It is required to determine P (Pascal) – the water pressure at the bottom of the vessel.
To determine the water pressure at the bottom of the vessel, you must use the following formula:
P = ro * g * h, where:
ro = 1000 kg / m3 (kilogram per cubic meter) – water density;
g = 9.8 N / kg (Newton per kilogram) is the acceleration of gravity.
Considering that ro = m / V, and h = V / s, we get:
P = m * g * V / (V * s) = m * g / s = F / s.
Answer: to determine the water pressure, you must use the formula P = F / s.
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