物理学 第五版 本章目录 4-3角动量角动量守恒定律 Angular momentum The law of angular momentum conservation 4-4力矩作功刚体定轴转动的动能定理 Work done by a torque The theorem of kinetic energy of a rigid body rotating about a fixed axis 第四章刚体的转动 4/7第四章 刚体的转动 物理学 第五版 4/7 4-3 角动量 角动量守恒定律 本章目录 4-4 力矩作功 刚体定轴转动的动能定理 Angular momentum The law of angular momentum conservation Work done by a torque The theorem of kinetic energy of a rigid body rotating about a fixed axis