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A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much power did they exert climbing the stairs?

Sagot :

Answer:

mate i got you

Explanation:

A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much work did they do climbing the stairs? answer choices . 400 J. 1200 J. 200 J. 120 J. Tags: Question 13 . SURVEY . 30 seconds . Report an issue . Q. A 40-kg person is climbing 3 m up a flight of stairs in 6 seconds. How much power did they exert climbing the stairs? answer choices . 400 W. 1200 W. 200 W. 120 W. Tags

Eduard22sly

200 W was used in climbing the stairs.

We'll begin by calculating the energy. This can be obtained as follow:

Mass (m) = 40 kg

Height (h) = 3 m

Acceleration due to gravity (g) = 10 m/s²

Energy (E) =?

E = mgh

E = 40 × 10 × 3

E = 1200 J

Finally, we shall determine the power exert in climbing the stairs. This can be obtained as follow:

Energy (E) = 1200 J  

Time (t) = 6 s

Power (P) =?

[tex]Power = \frac{Energy }{Time}\\\\Power = \frac{1200}{6}[/tex]

Power = 200 W

Thus, 200 W was used in climbing the stairs.

Learn more: https://brainly.com/question/5534024

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