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Sally Scientist lifts up a stack of science books from the floor and puts them on a table 1 m above
the floor. If she lifted 180 newtons of books in 1.5 seconds, how many watts of power does she
have?

Respuesta :

Answer:

P = 120 W

Explanation:

Force required to lift the book, F = 180 N

It is lifted 1 m above the floor in 1.5 s

We need to find the power of the student. Power is equal to work done divided by time taken. So,

[tex]P=\dfrac{Fd}{t}\\\\P=\dfrac{180\times 1}{1.5}\\\\P=120\ W[/tex]

So, the required power is equal to 120 W.

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