Re: ball - wall collision

```Inverted. I mean multiplied by -1

Thanks a lot .
-Ahmed

----- Original Message ----
From: Janek Kozicki <cosurgi@xxxxxxxxx>
Sent: Wednesday, November 15, 2006 9:09:38 AM
Subject: Re: [Yade-users] ball - wall collision

Ahmed ELMEKATI said:     (by the date of Tue, 14 Nov 2006 12:27:58 -0800 (PST))

> Thanks for your answer. Is the component of the velocity in direction normal to the wall inverted as well in this procedure or not?

velocity is a vector. And vector is just a direction in 3D space. It
cannot be negative, and cannot be inverted as 1/x. How can you tell
if vector (-1,3,-4) is negative (or inverted?).

So the answer: no, the velocity is not inverted.

--
# Janek Kozicki
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