keparisi4823 keparisi4823
  • 13-01-2021
  • Physics
contestada

A 60.0 kg woman runs up a staircase 15 m high (vertically) in 20. s. (a) How much power does she expend

Respuesta :

PhantomWisdom PhantomWisdom
  • 16-01-2021

Given that,

Mass of a woman, m = 60 kg

She runs up a staircase 15 m high in 20 s.

To find,

Power expanded.

Solution,

Power = rate of doing work

[tex]P=\dfrac{W}{t}\\\\P=\dfrac{mgh}{t}\\\\P=\dfrac{60\times 9.8\times 15}{20}\\\\=441\ W[/tex]

So, the required power is 441 W.

Answer Link

Otras preguntas

Which school professional is most likely to provide mental health services?
The main characteristic of all vertebrates is the presence of a. cartilage b. a large brain c. a backbone d. an exoskeletonI got it. The answer was
In which nation did an American-led coup overthrow a socialist government and install Augusto Pinochet as dictator in 1973? O O O A. Argentina B. Cuba C. Chile
If the ratio of side lengths of similar polygons is 6:11, what is the ratio of perimeters?
Why did some northerners support personal liberty laws? The Fugitive Slave Act paid judges more if they ruled against slave owners. They resented federal i
Which of the following best expresses the definition of mass?
Developing healthy relationships is an example of which type of health
Which correctly lists the steps in the prewriting process for writing a description? Choose a topic; write a draft; narrow the topic; and consider your audience
Please please help me out
whats the city of maryland