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Question

A pipe of cross section area 2 cm2 delivers 1500 litres of water in 5 minutes. The speed of water in m/s is ___


Solution

Area of cross section = 2 cm2

Volume of water = 1500 litres in 5 minutes

volume of water in 1 sec = 1500×10005×60 = 5000cm3 

volume of water flowing = area of cross section x speed of water

  speed of water = 50002 = 2500cm/s =  25m/s

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