a cylindrical pipe in inner diameter of 7 cm and water flows through it at 192.5 litres per minute.Find the rate of flow in kilo metres per hour
 

Asked by Vignesh Ms | 13th Mar, 2015, 06:27: PM

Expert Answer:

Hi Vignesh, 

D i a m e t e r space o f space c y l i n d r i c a l space p i p e space equals space 7 space m r a d i u s space equals space 3.5 space c m v o l u m e space o f space w a t e r space f l o w s space i n space 1 space m i n space equals space 192.5 space l v o l space o f space w a t e r space f l o w s space i n space 1 space h o u r space equals space 192.5 space cross times 60 cross times 1000 space c m cubed b u t space comma space v o l u m e space equals space πr squared straight l πr squared straight l space equals space 192.5 space cross times 60 cross times 1000 straight l space equals space fraction numerator 192.5 cross times 60 cross times 1000 cross times 2 cross times 2 cross times 7 over denominator 22 cross times 7 cross times 7 end fraction straight l space equals space 300000 space cm straight l space equals space 3 space km r a t e space o f space f l o w space equals space 3 k m divided by h r

Answered by  | 13th Mar, 2015, 07:08: PM

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