理论力学题,求各位大神给个详解

2024-12-02 18:52:10
推荐回答(1个)
回答1:

系统无外力矩,动量矩守恒:

Jz.ω0=J'z.ω , -->ω=Jz.ω0/J'z=2ma^2.ω0/(2m(a+L.tanα))=a^2.ω0/((a+L.tanα)