- #1
apiwowar
- 96
- 0
A 10-ft chain weighs 24 lb and hangs from a ceiling. Find the work done in lifting the lower end of the chain to the ceiling so that it is level with the upper end.
since you just take a little piece and add them up through an integral
wouldnt it be the integral from 0 to 10 of 2.4x
then to evaluate it you would get 1.2x^2 from o to 10
and get 120 ft-lb as your answer?
is that right or did i mess up somewhere?
since you just take a little piece and add them up through an integral
wouldnt it be the integral from 0 to 10 of 2.4x
then to evaluate it you would get 1.2x^2 from o to 10
and get 120 ft-lb as your answer?
is that right or did i mess up somewhere?