Question

Calculate the pressure 500m below the surface of water. Density of water is 1000kg/m^3. Take g=100m/s^2.

Answer 1

Applicate the formula:

p = ρ*g*d

Data:

p = Pressure = ¿?

ρ = Density = 1000 kg/m³

g = Gravity = 9,81 m/s²

d = Distance = 500 m

Replacing:

p = 1000 kg/m³ * 9,81 m/s² *500 m

• Resolving:

p = 4905000 Pa

The pressure at that deep is 4905000 Pa.

Answer 2

We know that,

hydrostatic \: pressure (p) = \alpha hghydrostaticpressure(p)=αhg

Where,

\alpha = density \: of \: water \: = 1000α=densityofwater=1000

h = Height at which pressure is to be calculated

p = 1000 \times 12 \times 9.8 = 117600 \:p=1000×12×9.8=117600