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A50-kg sack is lifted a vertical distance of 2 m another 25-kg sack is lifted a vertical distance of 4 m. if both sacks are lifted their respective distances in the same time, how does the power required for each compare? how about for the case in which the lighter sack is moved the same distance in half the time?
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A50-kg sack is lifted a vertical distance of 2 m another 25-kg sack is lifted a vertical distance of...
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