Work required to fill a conical tank

  • Thread starter nameVoid
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A right circular conical tank of height 3 feet and radius 1 foot at the top is filled with water to a height of 2 feet. Find the work required to pump all the water up and over the top of the tank.

similar triangles : x=y/3

water 62.5 lb/ft^3

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?? am i setting this up right
1. The problem statement, all variables and given/known data



2. Relevant equations



3. The attempt at a solution
 
32,121
3,994
Re: Work

Please show us how you set it up so that we can check your work. What is the weight of a typical volume element? The incremental work, [itex]\Delta W[/itex], is the weight of a typical volume element times the distance it has to be raised. Finally, the limits of integration will be the interval over which [itex]\Delta y[/itex] ranges.
 

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