Water is moving with a speed of 5.18 ms^...

Water is moving with a speed of `5.18 ms^(-1)` through a pipe with a cross-sectional area of `4.20 cm^2`. The water gradually descends `9.66 m` as the pipe increase in area to `7.60 cm^2`. The speed of flow at the lower level is

`3.0" ms"^(-1)`

`5.7" ms"^(-1)`

`3.82" ms"^(-1)`

`2.86" ms"^(-1)`

Text Solution

Verified by Experts

The correct Answer is:

From equation of continuity
`A_(1)v_(1)=A_(2)v_(2)`
`4.20xx5.18=7.60xxv_(2)`
`v_(2)=2.86" m"//"s"`

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