A coolie, with a load of 30kg on his head, walks on the platform. If h – InterviewSolution

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1.	A coolie, with a load of 30kg on his head, walks on the platform. If he walks a distance of 60m, what is the work done by him?
Answer» The work done by the coolie is zero because there is no displacement of’ the load in the direction of force, which he is applying vertically upwards.

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