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?

Answer 1

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.