Question

20. What is the pressure on a swimmer 10m below the surface of a lake? Atmospheric pressure is
101x105 Pa. Taking density of water 1000 kg/m3.​

Answer 1

Explanation:

Atmospheric pressure at the surface level = 1.01×10⁵ Pa

Pressure difference between surface and swimmer's position = Height × Density × g = 10m × 1000 kg/m³ × 10 m/s² = 10⁵ Pa

Therefore, Pressure on the swimmer = 10⁵ + 1.01 ×10⁵ Pa

= 2.01 × 10⁵ Pa