How Long to Empty Half the Water in a Vessel?

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The discussion revolves around calculating the time required to empty half the water from a vessel with specific dimensions and properties. The vessel has a cross-sectional area of 20 cm² and a capillary tube at the bottom with a length of 10 cm and an internal diameter of 0.5 mm. The initial water height is 50 cm, and the viscosity of water is given as 0.01 kgm⁻¹s⁻¹. Participants are encouraged to apply the Poiseuille Equation to solve the problem and share their attempts for further assistance. The focus is on understanding fluid dynamics in relation to the given parameters.
roshan2004
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Homework Statement



A vessel of cross section 20 cm2 has at the bottom a horizontal capillary tube of length 10 cm and internal diameter 0.5 mm. It is initially filled with water to a height of 50 cm. Find the time taken to empty one half of the content in the vessel. Viscosity of water is 0.01 kgm-1s-1

Homework Equations



Poiseuille Equation

The Attempt at a Solution

 
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hi roshan2004! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 

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