You are standing at x$=9\mathrm{.}0$km$.$ Lightning bolt $1$ at

x$=0$km and lightning bolt $2$ at x$=13\mathrm{.}0$km$.$ Both flashes

reach your eye at the same time. Your assistant is standing at

x$=2\mathrm{.}0$km$.$

Part A

Part B

If the answer to part a is no$,$ which flash does she see first?

Lightning bolt $1$

Lightning bolt $2$