Calculating Potential Energy of a Chain

AI Thread Summary
To calculate the potential energy required to pull a uniform chain back onto a table, one must determine the work done against gravity on the portion of the chain hanging over the edge. The chain has a mass of 4.7 kg and a length of 2.0 m, with 0.7 m hanging off the table. The center of mass for the overhanging section needs to be considered to find the total work required. The relevant equation involves integrating the force over the distance moved. Understanding these concepts is essential for solving the problem effectively.
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Homework Statement



A (uniform) chain with a mass of 4.7 kg and a length of 2.0 m lies on a table with 0.7 m hanging over the edge. How much energy is required to get all of the chain back on the table?

Homework Equations



W= integral(sumF)dx

The Attempt at a Solution



NO idea where to start.
 
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How much work is required to pull the center of mass of the overhanging 0.7 m over the edge of the table?
 

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