Question

The pressure in a water pipe on the ground floor of a building is 105 Pa. Calculate the pressure in a water pipe on the first floor at a height of 3 m. (density of water = 103 kg m-3 g = 10 N/kg)

Answer 1

Explanation:

Difference in pressure of water at ground floor and third floor

=(120000−300000)=900000Pa

Density of water =1000kgm

−3

Let 'h' be the height third floor.

P=hdg

h=

dg

p

=

1000×10

90000

=9m.