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A leaky bucket that weighs 7 lb and a rope of neglible weight are used to draw water from a well that is 488 ft deep. The bucket is filled with 38 lb of water and is pulled up at a rate of 5 ft/sec, but water leaks out of the bucket at a rate of 0.4 lb/sec. Find the work done in pulling the bucket to the top of the well.

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