bluemanoemi2222 bluemanoemi2222

10-12-2021
Physics

contestada

A 70 kg man is running up the stairs which is 3m high in 2s.(a)How much work is done by the man?(b)What is the power exerted by the man? (Use g = 10ms 2)

Respuesta :

tinybooyah tinybooyah

10-12-2021

Explanation:

m = 70 kg

s = 3m

t =2s

g = 10 m/s²

(a)How much work is done by the man?

W = Fs

= mg X s

= 70 x 3 x 10

= 210 x 10

= 2100 Joule

(b)What is the power exerted by the man?

P = W/t

= 2100/2

P = 1050 Watt

Answer Link

Otras preguntas

Determine whether the sentence below is simple or compound. the store is usually open by now, but the owners may be on vacation, or maybe they're just late toda

Which of the following is something a male should be considered about and contact a physician? A. Erection in the morning B. Ejaculation while sleeping C. Bot

Apollo astronauts left seismometers on the moon that radioed seismic data back to earth. the data showed that moonquakes occur more frequently when the moon is

100 POINTS PLZ HELP BRAINLESS Oscar is trying to determine the most common definition of travesty. Which is the best strategy for Oscar to use? 1) Use a the

combining like terms simplify the expression n - 10 + 9n - 3

A farmer has both pigs and chickens on his farm. there are 78 feet and 27 heads. how many pigs and how many chickens are there?

Media professionals and librarians are ____________, but their roles are changing as a result of social media.

I am writing an essay about genres of movies (horror, action, comedy) if this is my thesis statement, what would be a good conclusion? "Horror movies allow the

Mary just completed a test that required her to respond as quickly as possible to faces of people from various races. the test that mary took is called the

WILL MARK BRAINLIEST!!! Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every