A particle disintegrates into two pieces: the first has mass 1.00 MeV/c^2 and momentum 1.75MeV/c(adsbygoogle = window.adsbygoogle || []).push({});

the second has mass 1.50 MeV/c^2 and momentum 2.00 MeV/c.

find the mass and speed of the original particle.

What i have done is used the fact that [tex]p=\gamma m v[/tex] as well as [tex]E^2 = p^2c^2 + (mc^2)^2[/tex] to derive that for the original particle: [tex]\gamma = m*v[/tex] where [tex]\gamma=\frac{1}{\sqrt{1-\frac{v^2}{c^2}}}[/tex]

however this is two unknowns and one equation.

any help on this...

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# Homework Help: Special relativistic momentum

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