skabdeoeqbfa skabdeoeqbfa
  • 19-11-2020
  • Mathematics
contestada

A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 minutes. How much power is used?

Respuesta :

jcherry99
jcherry99 jcherry99
  • 19-11-2020

Answer:

50.031 watts

Step-by-step explanation:

Formula

Power = Force * distance / time

The units are critical

distance = meters

time = seconds

force = newtons = kg * m / s^2

Solution

F = m * a

a = 9.81

m = 102 kg

F = 102 * 9.81 = 1000.62 Newtons

T =  minute = 60 sec/min * 1 min

T = 60 seconds

d = 3 meters

Power = 1000.62 * 3 / 60

Power = 50.031

Answer Link

Otras preguntas

What two numbers have a product of -15 and a sum of -2​
2. Read these lines from the poem. "My mother walked another path and chose toil in an office over the ocean life of an ama." What theme do these lines help dev
HELP asap immediately
Example of job analysis template with answers ​
ingredients to make dosa it's urgent​
Can you help with this only and can write the question number with the answer next to it
NOW HELP!! Lightning is a dramatic example of an electric discharge. Although the process is not fully understood by scientists, one theory suggests that chargi
Yolanda makes wooden boxes for a crafts fair, She makes 100 boxes like the one shown, and she wants to paint all the outside faces.A. Find the surface area of 1
PLEASE HELP!!!! ILL GIVE A LOT OF POINTS HELP
The diagonal of a square is 2.42 cm. Findthe area of the square.​