Question

14. A boy weighing 40 kgf climbs up a stair of 30 steps
each 20 cm high in 4 minutes and a girl weighing 30
kgf does the same in 3 minutes. Compare : (i) the work done by them, and
(ii) the power developed by them.​

Answer 1

Answer:

2

Explanation:

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Answer 2

Answer:

(i)  =4:3

(ii) =1:1

Explanation:

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