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a garden hose of diameter 2cm is used to fill 1000 litre container in a time of 10 minutes.calculate the flow rate in cubic cm per second .
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Answer:
Correct option is
C
106 cm/s
Given,
Area, A=
4
πd
2
=
4
π
(0.02)
2
Volume rate of flow,
V
˙
=
time
volume
=
60
20L
=
3
10
−3
m
3
s
−1
Volume rate of flow = Cross-Section Area x Velocity of Flow
V
˙
=Av
v=
A
V
˙
=
3
10
−3
×
π(0.02)
2
4
=1.06ms
−1
=106cms
−1
Hence, velocity of water leaves hose is106cms
−