Does a coolie carrying load on his head do any work while standing or while moving? If not, why?

Does a coolie carrying load on his head do any work while standing or

1.	Does a coolie carrying load on his head do any work while standing or while moving? If not, why?
Answer» IE was not doing any WORK because he was carrying WEIGHT which is at 90 DEGREE and we all know that at 90 degree no work is done

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Does a coolie carrying load on his head do any work while standing or while moving? If not, why?

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