A man Of mass 50kg runs up a flight of stairs to a height of 5m in 4 s . (a) what is the work done by the mass (b) what is the average power developed by the man?
Answers
Answered by
4
Mass= 50kg
Height= 5m
Time taken =4s
We know
Work=F×S
=mg×h
= 50kg× 9.8 ms²×5m
= 2450J
Power developed= work/time = 2450J/45 =612.5
Similar questions