[问答题]
A train locomotive is pulling t6 w0ghyk(atw ;wo c 8.alhr .sk1kq (2ijkx7cxat 4ars of the same mass behind it, Fig. 4-47 . Determine the ratic7ja x(a2s4q.kt8 .k1ix lkrho of the tension in the coupling between the locomotive and the first car $\left(F_{\mathrm{T} 1}\right)$ , to that between the first car and the second car $\left(F_{\mathrm{T} 2}\right)$ , for any nonzero acceleration of the train.
