Water flows at the rate of 18 km / hr. through a cylindrical pipe 14 cm in diameter.
How long would it take to fill a conical vessel whose diameter at the base is 42 cm
and depth 240 m.
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Answer:
Amount of water required to fill the conical vessel
= volume of conical vessel
=
3
1
π(20)
2
×24=3200πcu.cm .... (1)
Ammount of water that flows out of cylindrlcar
pipe in 1 minute = π×(
20
5
)
2
×10×100
= 62.5\pi cu.cm .... (2)
From (1) & (2)
Time erqired to fill the vessel =
62.5π
3200π
= 51.2minutes.
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