Using Conservation of Energy to Analyze a Potential Energy Graph

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SUMMARY

The discussion focuses on applying the conservation of energy principle to analyze a potential energy graph. The key equation utilized is F = -dU/dx, which relates force to the potential energy gradient. The participant struggles to connect the concepts of force, mass, and acceleration, specifically using F = ma and a = d²x/dt², to derive velocity at various positions on the graph. The turning point and expected motion are also critical aspects of the analysis.

PREREQUISITES
  • Understanding of potential energy graphs and their characteristics
  • Familiarity with Newton's second law (F = ma)
  • Knowledge of calculus, particularly derivatives
  • Concept of conservation of energy in physics
NEXT STEPS
  • Study the relationship between potential energy and kinetic energy in mechanical systems
  • Learn how to apply the conservation of energy to solve motion problems
  • Explore the concept of turning points in potential energy graphs
  • Investigate the use of differential equations in analyzing motion
USEFUL FOR

Students studying physics, particularly those focusing on mechanics and energy conservation, as well as educators seeking to clarify these concepts in a teaching context.

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Homework Statement


I'm trying to figure out how to do D) and relate time to this potential energy graph.
Screenshot (27).png


Homework Equations


All I really know is that F = -dU/dx

The Attempt at a Solution


I tried to do something with F = ma
and a = d2x/ dt2
and then set the - derivative of U(x) equal to the above equation
but I can't really get an answer, and am quite frustrated cause I don't know how to go about answering this.
 

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You need to use the conservation of energy. When released from B, what is going to be the velocity at any point? How is that related to position?

Also, what position do you have as the turning point? Based on that, what kind of motion do you expect?
 

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