a
\(\frac{{K{E_{before}}}}{{K{E_{after}}}}\,\, = \,\,\frac{{\frac{1}{2}\,m{v^2}}}{{\frac{1}{2}\,\,mv_1^2}}\,\, = \,\,\frac{{{v^2}}}{{v_1^2}}\,\) જ્યાં \(,{{\text{V}}_{\text{1}}}\,\, = \,\,\frac{{{m_1}\,\, - \,\,{m_2}}}{{{m_1}\,\, + \;\,{m_2}}}\,\,{V_1}\,\, = \,\,\frac{{m\,\, - \,\,2m}}{{m\,\, + \;\,2m}}\,\,V\,\, = \,\, - \,\,\frac{V}{3}\)

તેથી ગતિઉર્જા નો ગુણોતર \( = \frac{{{V^2}}}{{V_1^2}}\,\, = \,\,9\,\,:\;1\)