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The velocity of water in a rier is 18kmh...

The velocity of water in a rier is `18kmh^-1` near the surface. If the river is 5 m deepm, find the shearing stress between the horizontal lyers of water. The coefficient of viscosity of water `=10^-2 poise.

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The correct Answer is:
A, B, C
`:' F=etaA(DeltaV)/(Delta x)`
`(F)/(A)=`shearing stress`=eta (Delta V)/(Delta x)`
`=10^(-3)xx(5)/(5)=10^(-3)N//m^(2)`.
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