I literally looked everywhere for the answer, and I still found nothing. I hope you get it right. Sorry.
Im not for sure but i think it takes a couple hundred years (or according to the climate)
<span>The primary gases of the atmosphere are _____:
</span>
nitrogen, oxygen, and carbondioxide
The first thing you should know for this case is that work is defined as the product of force by the distance traveled in the direction of force.
We have then:
W = Fd
The distance varies, so we must integrate:
from 0 to 20:
W = ∫F (x) dx
W = ∫32xdx
W = 32∫xdx
W = 32 (x ^ 2/2) = (16) (20 ^ 2) = 6400 ft * lbs
answer:
6400 ft * lbs is work done pulling the rope up 20 ft
