Non-conservaite force and Kinetic Energy

AI Thread Summary
A non-conservative force does not necessarily increase an object's kinetic energy; it can also do negative work, which can decrease kinetic energy. Non-conservative forces, like friction, depend on the path taken, meaning their effects vary based on the object's movement. The discussion highlights confusion about the nature of forces, particularly the distinction between conservative and non-conservative forces. The participant notes the lack of helpful resources in their online course, which complicates their understanding. Overall, the relationship between non-conservative forces and kinetic energy is nuanced and requires further exploration.
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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Thread 'A cylinder connected to a hanging mass'

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