- #1
Karol
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Homework Statement
In a one dimensional elastic collision there are two equations: conservation of momentum and conservation of energy. by solving those 2 sets we get that the relative velocity before equals minus the relative velocity after:
[tex]v_1-v_2=-(u_1-u_2)[/tex]
Is this equation valid also in the general case of two and three dimensional collisions?
i.e. is it: ##\mathbf v_1-\mathbf v_2=-(\mathbf u_1-\mathbf u_2)##
I have difficulties trying to solve an example i made up and i will post it separately
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