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Question

Water flows through a horizontal pipe of varying area of cross section at the rate 15 cubic metre per minute. Find the radius of pipe where water velocity is 3ms1

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Solution

Volume of water flowing per second=R
=1560
=0.25m3/s

R=Av
A=R/v
A=0.25/3
A=112m2

Area of the cross section is 112m2

Radius of pipe =1(12×π)[A=πr2]
=0.162m
=16.2cm

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