Q) If a man of mass 50Kg takes 60s to climb up 20 Steps, Each of height 15 cm, calculate his power? PLS HELP
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Answer:
Mass = 50 kg
Each step of height =15cm
The man climbs up 20 steps = 20×15 =300cm = 3m
Work done by the man = mgh..... ( work done= potential energy)
Work done by the Man = 50×9.8×3
Work done by the Man= 1470 J
Power of the man = work done / time
Power of the man = 1470/60
Power of the man= 24.5 watt
The power of the man is 24.5 watt
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