A porter of mass 50 kg carries a load of 80 kg and climbs a staircase of 50 steps in one minute. If the height of each step of staircase is 12 cm, what is the power used by the Porter?
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Answer:
power =mgh/t=80+50*9.81*12*50/60=
Explanation:
power is equal to work /time
work is nothing but force and displacement ..so use the above equation
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