15.7 A man takes a spiral stairway from the ground to go
to the roof of a building. Another man uses a ladder
against the wall of the building to reach its roof. Will
they both possess the same amount of potential
energy? Justify your answer.
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Answer:
No,
the man who climbed using the ladder will use more energy as he has to climb whearas the man using the spiral staircase has to just climb stairs and reach the roof without any problem.
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