对一道典型力学问题的思考
王晓颖, 王明利, 侯岩雪
Thinking about a typical mechanical problem
WANG Xiao-ying, WANG Ming-li, HOU Yan-xue
大学物理 . 2020, (01): 14 -17 .  DOI: 10.16854 / j.cnki.1000-0712.190014