two army person a and b each of weight -Physics 9th

two army person a and b each of weight -Physics 9th
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The ratio of powers of A and B = 2: 1  Explanation :    Where , Fa = 500N    S = 10m             Fb = 500N    ta = 20s , tb = 40s
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Two army persons A and B each of weight of 500 N climb up a rope through a height of 10 m. A takes 20 s while B takes 40 s to achieve this task. -Physics 9th

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