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A water hose of cross section area 4cm is used to fill a 30 litres vessel it takes 1 minute to fill that vessel the speed at which water leaves the hose is

Bhavishya , 6 Years ago
Grade 9
anser 1 Answers
Arun

Last Activity: 6 Years ago

That means the volume flow is 30 L/min. 
30 L = 30000 cm³ 
dividing by the cross-sectional area will give us the length. 
Area is πr² = π1² = 3.14 cm² 
30000 cm³ / 3.14 cm² = 9554 cm 

so the speed is 9554 cm/min 
or 159 cm/s

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