Non-conservaite force and Kinetic Energy

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SUMMARY

The discussion centers on the relationship between non-conservative forces and kinetic energy, specifically addressing the statement that if a non-conservative force acts on an object, its kinetic energy must increase. Participants clarify that non-conservative forces, such as friction, do not conserve mechanical energy and that the work done by these forces is path-dependent. The conclusion drawn is that while kinetic energy can increase due to non-conservative forces, it is not a definitive rule, as the force can also do negative work, decreasing kinetic energy.

PREREQUISITES
  • Understanding of non-conservative forces in physics
  • Familiarity with kinetic energy concepts
  • Knowledge of work-energy principles
  • Basic grasp of classical mechanics
NEXT STEPS
  • Study the principles of non-conservative forces in detail
  • Learn about the work-energy theorem and its applications
  • Explore examples of non-conservative forces, focusing on friction
  • Review classical mechanics textbooks for deeper insights into energy conservation
USEFUL FOR

Students of physics, particularly those studying classical mechanics, educators teaching energy concepts, and anyone seeking to understand the implications of non-conservative forces on kinetic energy.

Oliviam12
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Homework Statement


True/False If a non-conservative force acts on an object, its kinetic energy must increase.


Homework Equations


?

The Attempt at a Solution


I don't really understand the question, especially the part about a non-conservative force? I thought all forces were conserved, or am I confusing that with something else? However, I think the answer might be True but, the only reasoning behing that is that kinetic energy seems like it would increase over any force...
 
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Forces aren't conserved. Conserved quantities in classical physics include mass, energy, linear momentum, and angular momentum. What does your text say about nonconservative forces? What is a good example of a nonconservative force?
 
I don't really have a text yet... I am taking the class online and the online e-text is incompleate and unhelpful (I ordered a recommended book and it should be in within the week.) But, the only mention of nonconservative forces is "The work done by a nonconservative force depends on the path through which the force acts." and I read online that an example of a nonconservative force is friction.
 
Never mind, I just happened upon it online. Thanks anyway!
 

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