Question

Water running in a cylindrical pipe of inner diameter 7 cm , is collected in a container at the rate of 192.5 litre per minute . Find the rate of flow of water in the pipe in km/hr.

Answer 1

Answer:

3km/h

Step-by-step explanation:Flow rate = Volumetric flow rate/Area

 

Area = pi * r2  = (22/7)*7/2*7/2= 38.5 cm2  

Volumetric flow rate = 192.5 l/min.  

Since 1l = 1dm3 = 1000 cm3

So, Volumetric flow rate = 192.5 *1000  cm3/min

 

So, flow rate = 192.5 *1000  cm3/min / 38.5 cm2  

 flow rate = = 5000 cm/min = 5000*0.00001 km/(1/60 h) = 3 km/h