A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 30 meters above the ground. This takes 18 minutes, during which time 5 kg of water drips out at a steady rate through a hole in the bottom. Find the work needed to raise the bucket to the platform. (Use ?=9.8m/s2 calculate work with unit

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter7: Conservation Of Energy
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A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 30 meters above the ground. This takes 18 minutes, during which time 5 kg of water drips out at a steady rate through a hole in the bottom. Find the work needed to raise the bucket to the platform. (Use ?=9.8m/s2

calculate work with unit

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