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the surface of water in an water tank on the top of a house is 4m above the tap level. find the pressure of water at the tap when the tap is closed is it necessary to specify that the tap is closed g=10m/s

the surface of water in an water tank on the top of a house is 4m above the tap level. find the pressure of water at the tap when the tap is closed is it necessary to specify that the tap is closed


g=10m/s

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2 Answers

Chetan Mandayam Nayakar
312 Points
10 years ago

if tap is closed P=density*g*4m

if tap is open, you have to use Bernouilles equation

B.V.Suhas Sudheendhra
43 Points
10 years ago

Consider the level of tap at ground level.

then the height of the water above this tap level is 4m

so the pressure is given by

P=hdg

therfore, P=4*1000*10

P=40000pa=40KPa

It is necessary to specify because if the tap is open the water starts flowing and to calculate pressure we have to use Bernouli theorm

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