The conversation between human and AI assistant.
Why is frictional force is not a conservative force?
Interesting. Is all frictional force dissipative, or are there cases where it can be conservative?
In general, all frictional force is dissipative because it always converts mechanical energy into thermal energy. However, there are some cases where frictional force can become negligible or even zero, such as with superfluids or in a vacuum where there is no air resistance and no other surfaces to cause friction.