A coolie is moving on a road with luggage on his head. Does he perform work against the force of gravity? Give reason for your answer.
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A coolie is moving on a road with luggage on his head. Does he perform work against the force of gravity? Give reason for your answer.
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Answer:
yes , he perform work against gravity because the force of luggage on his head is in the downward direction means opposite to the direction of the force of gravity
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Answer:
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