A Coolie, with a Load of 30 Kg on His Head, Walks on the Platform. If He Walks a Distance of 60 M, What is the Work Done by Him?

A coolie, with a load of 30 kg on his head, walks on the platform. If he walks a distance of 60 m, what is the work done by him?

एक पंक्ति में उत्तर

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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