Question
Repeat Exercise 33 raising the bottom of the chain to the 12-foot level.
Step 1
This means that the chain is three feet from the top. We can divide the chain into two sections: section A which is 6 feet and remains on the ground, and section B which is 9 feet and is lifted. Show more…
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Key Concepts
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Lifting a Chain, consider a 15-foot hanging chain that weighs 3 pounds per foot. Find the work done in lifting the chain vertically to the indicated position. Repeat Exercise 35 raising the bottom of the chain to the 12-foot level.
Applications of Integration
Work
Run the winch until the bottom of the chain is at the 10-foot level.
Lifting a Chain, consider a 15-foot chain that weighs 3 pounds per foot hanging from a winch 15 feet above ground level. Find the work done by the winch in winding up the specified amount of chain. Run the winch until the bottom of the chain is at the 10 -foot level.
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