Solucao5

31 0311\n\nv = vZ \\iff (\\xi_{1}+\\xi_{2})^{2} = (\\rho p_{2})^{2}(m_{1}+m_{2})^{2}\\cdot 4.\n\\xi_{1}+\\xi_{2}=c^{2}(\\rho p_{2})^{2}+(m_{1}+m_{2})^{2}\\quad\nE \\in \\mathcal{E}, \\quad \\xi_{2}=\\xi p_{2} + 2m_{v}c^{2}?\nE_{2}\\rightarrow E_{1}\nE_{t} + E_{L} = \\cdots + E = E\np_{1} = p_{2} - \\rho_{t} + p_{t} > 0\n\\qquad \\sqrt{\\frac{v_{2}}{c^{2}}} = \\suscript{v}{E_{1}}\\cdots + \\sqrt{\\frac{v^{2}}{c^{2}}} = \\mathcal{H}\n\\quad \n\\left(\\xi_{1}+\\xi_{2}\\right) \\cdots = \\mathcal{L} - \\{E, E_{1}, E_{2}\\}