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A delivery man carries a 5.0-kg box up a flight of stairs 4.0 m above...

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A delivery man carries a 5.0-kg box up a flight of stairs 4.0 m above theground. How much work was done on the box by the man? Remember thathe is countering gravity which acts downward with an acceleration of 9.8m/s^2.A.) JB.) 20 JC.) 49 JD.) 98 JE.) 196 J

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