当物体所受合外力矩等于零时,物体的角动量保持不变,此即为角动量守恒定律。该定律适用于物体、物体组或质点系当不受外力矩或所受合外力矩为零的情况。角动量守恒定律在解物理题竞赛题中有许多应用,本文对角动量守恒定律在解物理竞赛题中的应用进行分类解析,供同学们学习时参 When the external moment of the object is equal to zero, the angular momentum of the object remains unchanged, which is the law of conservation of angular momentum. The law applies to objects, groups of objects or particles when not subject to external torque or external torque is zero. The Law of Conservation of Angular Momentum has many applications in solving physics problems. This paper classifies the application of the law of conservation of angular momentum in solving physics competition questions,