Alevel数学斜坡翻倒问题分析 1970-01-20
先看呵呵概要对那个习题的明确要求:Solveproblemsinvolvingtheequilibriumofasinglerigidbodyundertheactionofcoplanarforces,includingthoseinvolvingtopplingorsliding(problemssetwillnotinvolvecomplicatedtrigonometry)
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