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15. A man raises a box of mass 50 kg to a height of 2 m in 20 s, while another man raises the samebox to the same height in 50 s.(a) Compare : (i) the work done, and (ii) the powerdeveloped by them.(b) Calculate : (i) the work done, and (ii) the powerdeveloped by each man. Take g = 10 N kg-1.Ans. (a) (i) 1:1 (ii) 5:2,(b) (i) 1000 J, 1000 J (ii) 50 W, 20 W |
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Answer» A man raises a box of mass 50KG to a height of 2m in 10S , while ANOTHER man rises the same box to the same height in 50s. Compare :(i) the WORK done, and (ii) the POWER developed by them.Explanation:hope it help you mark at brainlist |
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