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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?
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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?

User ClaudioM
by
4.4k points

1 Answer

3 votes

Answer:

P = 120 W

Step-by-step 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,


P=(Fd)/(t)\\\\P=(180* 1)/(1.5)\\\\P=120\ W

So, the required power is equal to 120 W.

User Unferth
by
5.0k points
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