- #1

Zarif

- 9

- 1

^{2}= (pc)

^{2}+ (m

_{o}c

^{2})

^{2}

and for a system of particle , (ΣE)

^{2}= (Σpc)

^{2}+ (Σm

_{o}c

^{2})

^{2}

so in that way before a collision,

(ΣE

_{i})

^{2}= (Σp

_{i}c)

^{2}+ (Σm

_{oi}c

^{2})

^{2}

and after , (ΣE

_{f})

^{2}= (Σp

_{f}c)

^{2}+ (Σm

_{of}c

^{2})

^{2}

and as far as i know energy and momentum is conserved . so that means ΣE

_{i}=ΣE

_{f}

and also Σp

_{i}=Σp

_{f}

so that leads to Σm

_{oi}= Σm

_{of}

but as far as i know , rest mass is not conserved in a relativistic collision..

so where am i gettiing it wrong?