Two blocks with weights <img src="https://static.zxtiku.com/wangke/imgs/topic/c6115f8ce06eddcde990c9559398c5ab.png"/> and <img src="https://static.zxtiku.com/wangke/imgs/topic/a80aec6c0b0da91f9ddfb2a6c95024fe.png"/> are suspended on a homogeneous pulley with weight <img src="https://static.zxtiku.com/wangke/imgs/topic/b267af8ae6edf52e2c7353e72b0a08d0.png"/> by a weightless cable. <img src="https://static.zxtiku.com/wangke/imgs/topic/289c25f0a89463b43bde195c8b797543.png"/>. A moment <img src="https://static.zxtiku.com/wangke/imgs/topic/4f23ede33c0bdaaac9bb22a2542b5ebf.png"/> is applied on the pulley and the whole system is in a stationary state. The cable forces on blocks <img src="https://static.zxtiku.com/wangke/imgs/topic/c87f0a6c0a098933d6a330f023359288.png"/> and <img src="https://static.pphuashu.com/wangke/imgs/topic/a13a1e27b33273f6b262dade91829684.png.png"/> are <img src="https://static.zxtiku.com/wangke/imgs/topic/148f8d496959886ab5a4294556555573.png"/> and <img src="https://static.zxtiku.com/wangke/imgs/topic/3d7ed4a87c339443d2b50f89bc9d4c87.png"/> , respectively. If the moment <img src="https://static.zxtiku.com/wangke/imgs/topic/7d8a8bf60d4610b5ef806dee01513bca.png"/> is removed suddenly, then <img src="https://static.zxtiku.com/wangke/imgs/topic/b1400798fa710ac42d8dad5671b04202.png"/> must be larger than <img src="https://static.zxtiku.com/wangke/imgs/topic/62fdcc4041db8ed0c87395ac7468497c.png"/>provided there is no relative sliding between the cable and the pulley.<br/> <img src="https://static.zxtiku.com/wangke/imgs/topic/707682e860fe12dbb23bf6e17925d32a.png"/