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?
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OpenStudy (anonymous):
can i get some help?
OpenStudy (dbzfan836):
Hmm, I can help you
OpenStudy (anonymous):
YAY! thank you!
OpenStudy (anonymous):
i dont have anything to give tho. sorry :(
OpenStudy (dbzfan836):
If I am correct, work is force by distance, or w=fd
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OpenStudy (dbzfan836):
force is like the wieght he lifts, which is his wieght and the ropes, or 162 lb. per foot
OpenStudy (anonymous):
ok
OpenStudy (dbzfan836):
so 162*40= what?
OpenStudy (anonymous):
so 162x40
OpenStudy (anonymous):
6480
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OpenStudy (dbzfan836):
that means the total force, if I am correct, is 6,480 Newtons
OpenStudy (dbzfan836):
I would like someone to make sure
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
so w = 6480d
OpenStudy (dbzfan836):
Well, not really. w is joule, or newton-meter
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OpenStudy (dbzfan836):
say it is 6,480 j
OpenStudy (dbzfan836):
@ganeshie8
OpenStudy (anonymous):
but on the paper it says w= 8000
OpenStudy (dbzfan836):
well I need another person to help
OpenStudy (dbzfan836):
And ps Nobody else is helping you because this is a physics question
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OpenStudy (anonymous):
o but im in calculus 2 this was a calculus 2 question
OpenStudy (dbzfan836):
hmm well Its kinda both
OpenStudy (dbzfan836):
work and force are both used in physics. work and distance calculate force.
OpenStudy (dbzfan836):
Those are from physics
OpenStudy (anonymous):
o ok
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OpenStudy (dbzfan836):
Ask it in physics anyway. you will get more help
OpenStudy (anonymous):
ok thanks
OpenStudy (dbzfan836):
You can get it from someone more experienced. I am in 9th yet I am not even 13