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20. What is the pressure on a swimmer 10m below the surface of a lake? Atmospheric pressure is101x105 Pa. Taking density of water 1000 kg/m3. |
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Answer» 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 |
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