In an aquarium 32 cm high, 50 cm long and 20 cm wide, water is poured 2 cm below the edge. Calculate the pressure.
February 5, 2021 | education
| P = p * g * h – the formula for finding the pressure.
g = 9.8 N / kg.
p = 997 kg / m3 – water density.
In order to find the volume of the aquarium, you must first find its area.
S = a * b = 50 cm * 20 cm = 0.1 m2.
Since our height is 32 cm, and the water level is 2 cm lower, we will consider the height when calculating the volume of 30 cm.
V = S * h = 0.1 m2 * 0.3 m = 0.03 m3.
F = 997 kg / m3 * 9.8 N / kg * 0.03 m3 = 293 N – Pressure force.
P = 997 kg / m3 * 9.8 N / kg * 0.3 m = 2931 Pa – Water pressure at the bottom of the aquarium.
Answer: F = 293 H, P = 2931 Pa.
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