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  4. The pressure on a swimmer 40 m below the surface of water at sea level is.

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Q. The pressure on a swimmer $40 m$ below the surface of water at sea level is.

Mechanical Properties of Fluids

Solution:

Swimmer feel pressure at $20 m$ below
$P = P _{ o }+ h \rho g = P _{ o }+40 \times 10^{3} \times 10$
$P =1.01 \times 10^{5}+40 \times 10^{3} \times 10 $
$=4 \times 10^{5}+1.01 \times 10^{5}=4.01 \times 10^{5} Nm ^{-2}$