Q

A 40 kg girl climbs stairs through a height of 5 m in 4 seconds. Find her power.

RRB Group D 18/09/2018 / Shift-I 2018
✓ Answer: A 500 W
Using g = 10 m/s², P = mgh/t = 40 × 10 × 5/4 = 500 W.
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