一长为L的匀质细杆,可绕通过中心O的固定水平转轴在铅直平面内自由转动（转动惯量为M(L2)/12),开始时杆水平静止,一质量与杆相同的昆虫以速度V垂直落到杆上L/4处,昆虫下落后立即向杆的端点

一长为L的匀质细杆,可绕通过中心O的固定水平转轴在铅直平面内自由转动（转动惯量为M(L2)/12),开始时杆水平静止,一质量与杆相同的昆虫以速度V垂直落到杆上L/4处,昆虫下落后立即向杆的端点
一长为L的匀质细杆,可绕通过中心O的固定水平转轴在铅直平面内自由转动（转动惯量为M(L2)/12),开始时杆水平静止,一质量与杆相同的昆虫以速度V垂直落到杆上L/4处,昆虫下落后立即向杆的端点爬去,若要使杆匀角速度转动,试求昆虫沿杆爬行的速率?

一长为L的匀质细杆,可绕通过中心O的固定水平转轴在铅直平面内自由转动（转动惯量为M(L2)/12),开始时杆水平静止,一质量与杆相同的昆虫以速度V垂直落到杆上L/4处,昆虫下落后立即向杆的端点
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轴与杆之间的摩擦没有说啊，还有，算不算这个昆虫落到杆上瞬间所产生的冲量？

大学物理，长为L的细杆绕通过其一端的水平轴在竖直平面内自由转动、当杆与八年级上物理复习提纲（1）声现象 1．物理学是研究声、光、热、电、力等

这是大学习题吗？所列微分方程貌似无法求解啊！