Properties Of Solids And Liquids Question 210

Question: Water is moving with a speed of 5.18 ms?1 through a pipe with a cross-sectional area of 4.20 cm2. The water gradually descends 9.66 m as the pipe increase in area to 7.60 cm2. The speed of flow at the lower level is

Options:

A)3.0 ms?1

B)5.7 ms?1

C)3.82 ms?1

D)2.86 ms?1

Show Answer

Answer:

Correct Answer: D

Solution:

a1v1=a2v2

therefore 4.20×5.18=7.60×v2v2=2.86 m/s



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