Where can I find information about the parameter “damping” when we apply a force? According to the wiki damping 0 would be “never stop” but if I trie it never stop is 1, 0 is stop inmediatly :astonished:

No, it says "Enter a length of 150 for the force, and a damping of 0, as the force will be continuously applied. "
As the event has no conditions, the action to add the force will be launched continuously/every frame, so you put a damping = 0 to “delete” the force added in the previous frame before add a new force, otherwise you will be adding forces to the previous ones and the speed will be increased each frame :slight_smile:
With a damping = 1, you just have to apply the force once to get a constant movement.

Ok, I see! thank you!