Question

a man whose mass is 50 kg moves up 15 steps each of height is 15cm in 45 second of time calculate the power used in climbing the stairs

Answer 1

Hello mate,

Here is your answer,

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Height = 15 × 15 cm = 225 cm = 2.25 m  

Time = 40 sec  

Work done by man = F.h  

= 500 × 2.25 j  

power = work done /time taken  

= 500 × 2.25/40

=12.5 × 2.25 watt  

=28.125 watt

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HOPE THIS HELPS YOUU :)

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