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A spring exerts 4x pounds of force when stretched x feet from rest. One end is fixed to the ceiling. A chain that is 10ft long and weighs 2lb/ft hangs from the other end. The end of the chain just brushes the floor. Find the work done pulling down on the chain a distance of 2ft.

I am having trouble setting up this integral. The force of the spring would be 4x and you would minus the force of the chain which would be 2(10 - x)? Apparently that isn't right though. If someone could help me set this up it would be appreciated. Thanks

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# Homework Help: Work integral

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