If a man of mass 20 kg steps up a ladder to a height of each step 10 cm. if there are 45 number of steps in the ladder , find the power if man, if he takes time 40 sec.
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Answer:
P=22.05
Explanation:
m=20kg total h =450cm=4.5m t=40s
Power= mgh/t
20*4.5*9.8/40
P=22.05
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