Two hikers set off to climb a hill: Bob takes a gradual path to the top; Alice c
ID: 1352010 • Letter: T
Question
Two hikers set off to climb a hill: Bob takes a gradual path to the top; Alice climbs a steep vertical cliff. If they both start from the bottom and Alice arrives at the top first, which of the following statements are true?
Alice expended more energy than Bob.
Bob exerted more power in his climb than Alice.
Alice exerted more power in her climb than Bob.
Bob expended more energy than Alice.
Alice & Bob expended the same amount of energy.
They both exerted the same amount of power.
Alice expended more energy than Bob.
Bob exerted more power in his climb than Alice.
Alice exerted more power in her climb than Bob.
Bob expended more energy than Alice.
Alice & Bob expended the same amount of energy.
They both exerted the same amount of power.
Explanation / Answer
here,
Power = Force * Displacement /Time
as alice reached early therefore
She expended more energy than bob
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