Consider the system of two wagons shown in the figure. The natural frequencies of this system are
1
0, \(\sqrt{\frac{{2k}}{{m}}}\)
2
\(\sqrt{\frac{{k}}{{m}}}\) , \(\sqrt{\frac{{2k}}{{m}}}\)
3
\(\sqrt{\frac{{k}}{{m}}}\) , \(\sqrt{\frac{{k}}{{2m}}}\)
4
0 , \(\sqrt{\frac{{k}}{{2m}}}\)