How do I apply rolling friction to a ball?

AI Thread Summary
To apply rolling friction to a ball, it's essential to understand that the force of rolling friction (F = µmg) acts in the opposite direction of the ball's motion. This force should not be simply subtracted from the ball's velocity, as it could prevent the ball from coming to a stop. Instead, the rolling friction force must be proportional to the velocity, ensuring that it decreases as the ball slows down. The physics engine in use does not account for rolling friction, necessitating a manual implementation. Properly integrating this friction will allow for realistic ball movement and stopping behavior.
hyacint
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Hello,

I need to apply rolling friction to a ball, but I don't understand where to plug it in.

I know the rolling friction that I want to put in, but I can't just subtract the force of rolling friction on velocity, because the ball would never come to a stop, it would turn back again (and make the ball going back and forward when velocity is smaller than that force).

F = µmg right? (on a flat plane at least)

But isn't this force depending on the velocity of the ball too? Because this force can't be more than the velocity of the ball, if so the ball could never stop. I don't get it.

I'm using a physics engine that handles everything else, but I need to plug in this rolling friction because the engine doesn't have it built in.
 
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