A man picks up a 50 kilogram block and carries it up a flight of stairs 10 meters high. He then carries the block back down the stairs and places the block in its original position. What is the net work done on the block? A) 1,000 joules b) 750 joulesc) 500 joules d) 0 joules
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Answer: 0J
Explanation: since the net displacement of the block is 0 the net work done is 0
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Answer:d) 0 joules
Explanation:no work done
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