Question

How many litres of water flows 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 have,

Cross section area of pipe = 5 cm²

Speed of water = 30 cm/s

Time = 1 minute = 60 sec

Volume of water flows through pipe = Area of cross section × speed of flow × time

= 5 × 30 × 60

= 9000 cm³

= 9000/1000 = 9 litres

∴ 9 litres of water flows out of pipe.