- #1
Littlepig
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Homework Statement
Ok, I'm making an algorithm to calculate some stuff, and meanwhile, i needed to compute a 2D collision between 2 particles of same mass.
To work that out, I needed to change referential to Mcenter. The problem was there...
Homework Equations
Vcm=(v1+v2)/2 (m1=m2)
velocity addition by Galileo
The Attempt at a Solution
ok, Vcm=(v1+v2)/2
so, v1cm=v1-Vcm=v1-(v1+v2)/2=(v1)/2-(v2)/2
in the same way:
v2cm=v2-Vcm=v2-(v1+v2)/2=(v2)/2-(v1)/2
Now, the problem is: this too equations are L. Dependent, that means the matrix related to it isn't invertible, so, after i calculate the Vfinal in CM referencial, i can't change it to lab referential.