How many litres of water flow out of a pipe having an area of cross-section of `5\ c m^2` in one minute, if the speed of water in the pipe is `30\ c m//s e c` ?

Answer

9 lites

Explanation

Speed of water = 30m/s
Volume of water that flows out of the pipe in 1s
= area of cross section `xx` length of water flows in 1s
`= (5xx 30) cm^(3) = 150 cm^(3)`
Volume of water that flows in 1 minute
`= (150 xx 60) cm^(3) = ((150 xx 60)/(1000))` litres = 9 litres