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A boy of mass 40kg runs up a flight of 50 steps each of 10cm high in 5 sec find the power developed by the boy?
Wiki User
∙ 13y ago
Force=m*g=40 kg*10m/s2=400N
Work=F*S=400N*(50*10)cm=200000J
PE=total Work done=200000J
Power=Work/Time=200000/5=40000Watt
Wiki User
∙ 13y ago
Ankush Kumar
- F=mg=40kg*10m/s^2=400N
- S=500cm=5m
- Work done=FS=400N5m=2000J
- P=F*S/t=2000J/5sec=400
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