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Example 2 (5.4). A cable that weighs 2 lb/ft is used to lift 8001b of coal up a mine shaft 500 ft deep. Find the

Example 2 (5.4). A cable that weighs 2 lb/ft is used to lift 8001b of coal up a mine shaft 500 ft deep. Find the work done in lifting the coal from bottom of the mine shaft to the tap

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