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OpenStudy (anonymous):

A rescue cable attached to a helicopter weighs 2 lb/ft. A 160-lb man grabs the end of the rope and is pulled from the ocean into the helicopter. How much work is done in lifting the man if the helicopter is 40 ft above the water?

OpenStudy (dbzfan836):

@abb0t

OpenStudy (dbzfan836):

@undeadknight26 <<<The guy that is awesomely useful

OpenStudy (dbzfan836):

Tom, can you help?

OpenStudy (anonymous):

thanks @Dbzfan836

OpenStudy (dbzfan836):

np

OpenStudy (dbzfan836):

thnk Undeadknight

undeadknight26 (undeadknight26):

What do you mean how much work is done?

OpenStudy (anonymous):

um thats what it said..idk

OpenStudy (anonymous):

the answer says 8000 ft.lb

undeadknight26 (undeadknight26):

Interseting...does it tell you why?

OpenStudy (anonymous):

I figered it out. its \[\int\limits_{0}^{40}2x+160\]

OpenStudy (anonymous):

which equals 8000

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