\begin{matrix}E_{A} = γ_{A}mc^{2} \\ E_{B} = γ_{B}mc^{2} \end{matrix}

\frac{γ_{A}}{γ_{B}} =

γ_{A} = γ_{B} ( )

t_{A} = \frac{D}{v_{A}}

γ = \frac{1}{\sqrt{1 − \frac{v^{2}}{c^{2}}}}  →  v = c \sqrt{1 − \frac{1}{γ^{2}}}

\begin{aligned}t_{A} & = \frac{D}{c} \frac{1}{\sqrt{1 − \frac{1}{γ^{2}}}} \\ & = t_{0} \frac{1}{\sqrt{1 − \frac{1}{γ^{2}}}} \end{aligned}

t_{A} = t_{0} + \frac{1}{2} t_{0} \frac{1}{γ_{A}^{2}}

t_{B} = t_{0} + \frac{1}{2} t_{0} \frac{1}{γ_{B}^{2}}

t_{B} − t_{A} = \frac{1}{2} t_{0} (?? −??)

\begin{aligned}t_{B} − t_{A} & = \frac{1}{2} t_{0} (\frac{1}{γ_{B}^{2}} (1 − \frac{1}{1.73^{2}} )) \\ & = \frac{1}{2} t_{0} (0.6648) (\frac{1}{γ_{B}^{2}} ) \end{aligned}