1. A child feels that he has done lot of work in last few hours for he has read 25 pages of a book, but according to science he has done zero work, justify.
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5
Answer:
because according to science if an object or a persone dosent change its position or move with respect to time the work done is 0
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8
Answer:
because according to science we can only say that work is done when the force applied on the body displaces it from one position to another but in this case No displacement as done so that is according to science the baby has done zero work....
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