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Work = A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 40 meters above the ground.

  

Work = A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 40 meters above the ground. This takes 8 minutes, during which time 3 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 g = 9.8m/s.)

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