For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the impact locality and stop locality of collision vehicle.

对于二维碰撞，可以根据车辆的碰撞位置和停止位置，反推计算出车辆碰撞后的分离速度和碰撞前的接触速度。

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For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the slippage distance and unreturnable distortion of collision vehicle;

对于一维碰撞，根据碰撞后车辆的滑移距离和车辆的塑性变形量，反推计算出车辆碰撞后的速度和碰撞前的接触速度；

youdao

For collinear collision, the preceding collision velocity and post collision velocity are calculated on the basis of the slippage distance and unreturnable distortion of collision vehicle;

对于一维碰撞，根据碰撞后车辆的滑移距离和车辆的塑性变形量，反推计算出车辆碰撞后的速度和碰撞前的接触速度；

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