Question

Stand, with your arms, in front of you, at your waist level with the palms facing
upwards. Have your friend put a book on each of your hands. Now lift the books to
(i) about your shoulder level and then lower them back, (ii) a level near your
head
and then lower them back. In which case did you do more work? Justify your answer
on the basis of the scientific definition of work.​

Answer 1

Explanation:

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