Odpowiedź :
Skrócenie Lorentza:
[tex]L=l_0\sqrt{1-\beta^2}\\L=\frac{L_0}{3}\\\frac{1}{3}=\sqrt{1-\beta^2}\\1-\beta^2=\frac{1}{9}\\\beta=\frac{2\sqrt2}{3}\\V=\frac{2\sqrt{2}}{3}c\approx2.83\cdot10^8m/s[/tex]
pozdrawiam
Skrócenie Lorentza:
[tex]L=l_0\sqrt{1-\beta^2}\\L=\frac{L_0}{3}\\\frac{1}{3}=\sqrt{1-\beta^2}\\1-\beta^2=\frac{1}{9}\\\beta=\frac{2\sqrt2}{3}\\V=\frac{2\sqrt{2}}{3}c\approx2.83\cdot10^8m/s[/tex]
pozdrawiam