A coolie is moving on a road with a luggage on his head. Does he perfo – InterviewSolution

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1.	A coolie is moving on a road with a luggage on his head. Does he perform work against the force of gravity ? Give reason for your answer.
Answer» A coolie carrying a luggage on his head moving on the ground does not work against the force of gravity as displacement is normal to the direction of the force of gravity.

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