Question

how many litres of water flow out through a pipe having an area of cross section of 5cm^​2in one minute.if speed of water thorough pipe is 30cm/sec

Answer 1

$$\begin{gathered} \mathrm{Distance}\mathrm{traveled}\mathrm{by}\mathrm{the}\mathrm{water}\mathrm{in}60\sec =30\times 60=1800\mathrm{cm} \\ \mathrm{Volume}\mathrm{of}\mathrm{water}\mathrm{crossing}\mathrm{through}\mathrm{the}\mathrm{pipe}\mathrm{is}=5\times 1800=9000{\mathrm{cm}}^3=9000\mathrm{ml}=9\mathrm{litre} \end{gathered}$$