如图所示半径为r的光�圆形轨道固定在竖直面内小球 ab质量分别为mβmβ为待定系数a球从左边与圆心等高处由静止开始沿轨 道下� Template




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Try and sketch some of theseZinnia, Grill, Gizmo, Dishes, Sandal, Guard, Lounge, Coffin, Hockey mask, Chariot, view more ideas


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tomski如图所示半径为r的光�圆形轨道固定在竖直面内小球 ab质量分别为mβmβ为待定系数a球从左边与圆心等高处由静止开始沿轨 道下� coloring