《理论力学9 动能定理、综合题》由会员分享,可在线阅读,更多相关《理论力学9 动能定理、综合题(9页珍藏版)》请在金锄头文库上搜索。
? ?m?OA?O?l? ?37? ? ?1M1m2M2m1O1r3m2O2r4m2m1m4m2Mh? ?38?ABKg4mm600?l?A? ? ? ? ?Kg6mm100?rN/mm2AAB? ? ?39? ?OAl1mM? ?O2mAF0? ?40?r?OA?1m2mR?M? ?41?ABkg4?m? ?42?A1m?B?2mCB?OAB? ?43?mr?OB?CR?AB? ?44?ABC1m2mOAB? ?45