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Question
How many litres of water flow out of a pipe having an area of cross-section of 5 cm2 in one minute, if the speed of water in the pipe is 30 cm/sec?
Solution
We know:
Area of cross section = 5 cm2
Rate = 30 cm/s and
Time =1 min
So, the volume of water flow is:
Volume = Volumetric rate x Time = (30 cm/s)(5 cm2)(60 s/min) = 9000 cm3 = 9 litres
Thus, 9 litres of water flows out of the pipe.
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