Question

What is the pressure at a depth of 100 meter

Answer 1

At 100m, water pressure is 10bar, relative to the surface. But the absolute pressure is 11bar (1bar is the atmospheric pressure on the water surface, plus 10bar water pressure).

Answer 2

pressure = 981000 N/m²

Step-by-step explanation:

To calculate the pressure in liquids, we have to use the following formula:

`\boxed{p = h \rho g}`,

where:
• p = pressure in N/m² (or Pa)

• h = height in m

• ρ = density in kg/m³

• g = gravitational acceleration (9.81 m/s²)

From the question, we know that the height is 100 m, therefore h = 100. The density of water is 1000 kg/m³, therefore, ρ = 1000.

Using this information along with the formula above, we can calculate the pressure:

p = hρg

⇒ p = 100 × 1000 × 9.81

⇒ p = 981000 N/m²

Therefore, the pressure at a depth of 100 m is 981000 N/m².