Question

Water is being pumped out through a circular pipe whose internal diameter is 7 cm. If the flow of water is 72 cm/s, how many litres of water is being pumped out in 1 hour?


Answer with complete steps and explanations.

Answer 1

Hey bro, Refer the attachment.

Answer 2

Don't look picture .




now explanation :-





we have radius of circular pipe= 7/2 .




now,,
the water flow from circular cylinder of radius 7/2 ..


it is given that water flow out @ of = > 72cm/ sec .


now ,


length of water flowing in 1 second is = 72 cm .




Volume of Cylinder of radius 7/2 and length is 72 cm .






now,


we have to calculate the volume of cylinder



= >
$\pi \times( 7 \div 2) {}^{2} \times 72cm {}^{3}$



volume comes is => 2772 cm3.



volume of water flowing out in one hour = >

2772 * 3600 cm3 .

=> 9979200 cm3 .



9979200/ 1000.


9979.2 liters.





hope it helps in understand you now ..



thanks .