lillymcginn lillymcginn
  • 02-11-2019
  • Mathematics
contestada

A lift that weighs 300N moves a man with a weight of 950N upwards by 12m. How much work is done to move the lift this height?

Respuesta :

skyluke89
skyluke89 skyluke89
  • 07-11-2019

Answer:

15,000 J

Step-by-step explanation:

Since the lift also carries the man, the total weight of the man+lift system is

[tex]F=300 N + 950 N = 1250 N[/tex]

The work done in moving the lift upward is

[tex]W=Fd[/tex]

where

F is the weight of the lift+man combined system

d is the displacement

In this problem,

F = 1250 N

d = 12 m

Substituting,

[tex]W=(1250)(12)=15,000 J[/tex]

Answer Link

Otras preguntas

Factor the expression. If the expression cannot be factored, say so.
Factor the expression. If the expression cannot be factored, say so.
What were the contributions of the Harappan civilization?
Does an owl have a backbone?
Does an owl have a backbone?
josh wanted to buy a bicycle but didn't have enough money. After josh told his troubles to sam slick, sam said,"I can fix that. see that fence? each time you ju
What were the contributions of the Harappan civilization?
What is 25% of $500.00? I think the answer is $475.00 Can someone verify if twenty five percent of 500.00 is $475.00
josh wanted to buy a bicycle but didn't have enough money. After josh told his troubles to sam slick, sam said,"I can fix that. see that fence? each time you ju
Thelma spent 1/6 of her weekly allowance on dog toys.  1/4 on a dog collar and 1/3 on dog food.  What fraction of her weekly allowance is left