I was reading Bourg's "physics for game developers" second edition.
In page 117(chapter 5,Friction) , what confused me is the way to apply the tangent impulse.
The book writes :
[attachment=23871:formular.jpg]
v1+ is the velocity of body1 after the collision between body1 and body2.
v2+ is the velocity of body2 after the collision between body1 and body2.
why v1+ and v2+ both + (uJ)t/m1 ?
In my opinion,the right way to apply the tangent impulse is like this:
v1+ = ... + (uJ)t/m1
v2+ = ... - (uJ)t/m2
What's wrong?
