为了向交通事故再现提供新的依据，研究了动量冲量法与多体动力学法结合的乘员运动仿真，提出了两类算法的耦合方法。
In order to provide new proof for accident reconstruction, the method of occupant kinematics reconstruction using the coupling of momentum-based method and multi-body dynamics method was studied.
冲量，动量的改变；火箭方程；随机运动的压力作用点。
Impulse and momentum change; rocket equation; origin of pressure from random motion.
更进一步探讨运动学，质点动力学，于加速座标系上之运动行为，功，能量，冲量，动量和质点系统与刚体动力学。
Further topics include kinematics, particle dynamics, motion relative to accelerated reference frames, work and energy, impulse and momentum, systems of particles and rigid body dynamics.
这有一个例子，可以说明角冲量和角动量概念的用途。
Here is an example of the usefulness of the concepts of angular impulse and angular momentum.
碰撞时质点系动量的改变等于作用在质点系上所有外碰撞冲量的矢量和。
The change in the momentum of a system of particles during an impact is equal to the vector sum of all the external impulses acting on the system.
如果冲量为零，则动量不变。
如果冲量为零，则动量不变。
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