a lady of mass 60 kg climbs up a staircase of 80 steps in 40 seconds if the height of each step is 20 cm find her power
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Total height=no of staircase *height of each staircase
80*20cm=1600cm
Work =mgh
60*9.8*1600
940800 J
Power= work /time
940800/40
23520 W
Amin2004:
wrong 1600cm=16 m
bro you have to convert in SI system to get Joule
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taking acceleration due to gravity as 10m/s^2, the answer in 2400 watt, you cantake9.8 m/s^2 also.
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