Any good resources that help you practice setting up an integral from scratch?

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SUMMARY

The discussion centers on the problem of a rubber band being pulled while an ant crawls towards the wall, requiring the setup of an integral to analyze the situation. The technique involved is related to the concept of infinitesimals, specifically using "dx" in calculus. Participants seek resources for practicing similar problems, noting that standard calculus textbooks often do not cover these types of applications. Recommendations include exploring OpenStax resources for additional practice problems.

PREREQUISITES
  • Understanding of calculus concepts, particularly integrals and infinitesimals.
  • Familiarity with the concept of limits and convergence in mathematical analysis.
  • Basic knowledge of differential equations and their applications.
  • Experience with mathematical problem-solving techniques.
NEXT STEPS
  • Explore OpenStax calculus resources for practice problems involving integrals.
  • Study the application of infinitesimals in calculus, focusing on rigorous definitions and examples.
  • Research differential equations and their relevance to real-world problems like the rubber band scenario.
  • Look for online courses or textbooks that specialize in advanced calculus techniques and applications.
USEFUL FOR

Students and educators in mathematics, particularly those interested in advanced calculus applications, as well as anyone looking to deepen their understanding of integrals and infinitesimal techniques.

joebevo
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Take a look at the following problem:

"A rubber band with initial length L has one end tied to a wall. At t = 0, the other
end is pulled away from the wall at speed V (assume that the rubber band stretches
uniformly). At the same time, an ant located at the end not attached to the wall
begins to crawl toward the wall, with speed u relative to the band. Will the ant
reach the wall? If so, how much time will it take?"

I would like to know if there is any website or book that gives you practice with problems like these. It basically involves setting up an integral using the concept of infinitesimals ("dx"). At least, that is my take on it.

One doesn't come across this sort of stuff in a standard calculus textbook. What is this technique officially called and where can I get more practice using it? I would appreciate your responses.

Thanks :)
 
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