[问答题]
A train locomotive is pulling two cars of the sacwg9m;k:+qa z me 0cnpy- 7zd o gc8+n+nrmass behind it, Fig. 4-47 . Determine the ratio of the tension in the coupling between the locomotive and the f 0yn-pozc+n8rngd 7c+irst 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.
