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[Chareyre <question214773@xxxxxxxxxxxxxxxxxxxxx>]

Question #214773 on Yade changed:
https://answers.launchpad.net/yade/+question/214773

Chareyre proposed the following answer:
I second Jan. In fact you don't even need to compare two laws to see this effect.
Try Cundall & Strack with Young=E1, then run the same test with Young=2*E1: different forces, similar velocity/positions.

>i'm interested in how yade calculate the velocity and position if there
isn't a contact anymore?

 Newtons says "acceleration = force / mass". It is not different with and without contacts.
If contacts are present they will be added to force, else force is null (acceleration=0, velocity=cste) or it includes other things (e.g. weight).

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