Q.. The pressure in water pipe at ground floor of a building is 120000 Pascal whereas pressure at third floor is 30000 Pascal. Calculate the height at the third floor.(g=10m/s^2)
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43
Pressure at ground floor = 120000 Pa.
Pressure at third floor = 30000 Pa.
let the height of third floor from ground = h
Pressure drop when water reaches height h = d×g×h
where d= density of water = 1000 kg/m^3
Thus pressure drop = d×g×h
=> 120000 - 30000 = 1000 × 10 × h
=> 90000 = 10000h
=> h = 90000 ÷ 10000
=> h = 9m
Hence, height of third floor is 9m
Pressure at third floor = 30000 Pa.
let the height of third floor from ground = h
Pressure drop when water reaches height h = d×g×h
where d= density of water = 1000 kg/m^3
Thus pressure drop = d×g×h
=> 120000 - 30000 = 1000 × 10 × h
=> 90000 = 10000h
=> h = 90000 ÷ 10000
=> h = 9m
Hence, height of third floor is 9m
anshuma80:
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Answered by
0
Answer:
9 meters
Explanation:
the height of the third floor is 9 meters
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