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A bucket that has a mass of 10 kg when filled with sand needs to be
lifted to the top of a 25 meter tall building. You have a rope that
has a mass of 0.1 kg/m that must be secured to the bucket. It takes
1 meter of rope to secure the bucket. Once the bucket reaches the
top of the building it only has mass 8 kg because there was a hole
in the bottom and sand was leaking out at a constant rate while it
was being lifted to the top of the building.
Find the work done lifting the bucket (sand and rope) to the top of
the building.
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