Question

Water is discharged from a pipe of a cross-section area 3.2 cm² at the speed of 5m/s. Calculate the volume of water discharged: 
(i) In cm³ per sec.
(ii) In liters per minute.

Answer 1

(i) The rate of speed  = ` 5 "m"/s = 500 "cm"/s`

The volume of water flowing per sec = 3.2 x 500cm³ = 1600 cm³ 

(ii) Vol. of water flowing per min = 1600 x 60 cm³ = 96000 cm³ 

Since 1000 cm³ = 1 litre

Therefore, Vol. of water flowing per min= `(96000)/(1000 )` = 96 litres