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## Homework Statement

Water in a cylinder of heigth 10 ft and radius 4 ft is to be pumped out.

Find the work required if the tank is full of water and the water must be

pumped to a height 5 ft above the top of the tank

## Homework Equations

## The Attempt at a Solution

I tried to slice this cylinder horizontally, so I get:

Force of gravity on slice = 62.4 * 16 * phi * delta h

Work done of slice = Force of gravity * distance

I am confused on what is the distance here, is it 5?