How does friction work in godot?

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:bust_in_silhouette: Asked By KijeviGombooc

I am trying to make a game with accurate physics (as far as a computer can do that).
If I have a cube and a “road” under it. I give both bodies a physics material. So far I think the lesser friction is considered in the calculations. Is there air drag? Is it possible to create “ideal” circumstaces (no friction/air drag)?