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 Form 2 Physics Topical Questions and Answers on Fluid Flow

A pipe of radius 6 mm is connected to another pipe of radius 9 mm. If water flows in the wider pipe at a speed of 2m/s what is the speed in the narrower pipe?

 (3m 0s)
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Answer Text:
A1V1 = A2V2
#pi R^2 V1 = pi r^2V2
pi times 9^2 X 2 = pi times6^2V2
V2 =(pi times 81 times2)/(pi times36)# = 4.5m/s