A crane on a dock lifts an 1107kg container 28m swings it
a crane on a dock lifts an 1107kg container 28m, swings it out over the deck of a freighter, and lowers the container into the hold of the freighter, which is 9m below the level of the dock. how much work is done by the crane on the container?
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a crane on a dock lifts an 1107kg container 28m swings it out over the deck of a freighter and lowers the container
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