质点沿最速降线和首尾固定的两相连线段下落问题的研究

邵云

Study of the problems of particles falling along the fastest down line and two connected line segments with fixed ends

SHAO Yun

大学物理 . 2019, (12): 20 . DOI: 10.16854 /j.cnki.1000-0712.190071