Two methods of establishing acceleration instantaneous center place, namely, a round of outside connection method and a formula method are described.

提出了求加速度瞬心的两种方法，即外接圆法和公式法。

youdao

That is the instantaneous acceleration.

这也就是瞬时加速度。

youdao

Finally, the method of solving instantaneous acceleration power spectrum of nonstationary random response of arbitrarily point on vehicle is presented.

最后给出如何求解车辆上任一固定点非平稳随机响应的瞬时加速度功率谱。

youdao

At any point on the graph you can take the derivative, which will be tangent to the curve at each point, and its numerical value will be what you can call the instantaneous velocity of that point and you can take the derivative over the derivative and call it the acceleration.

在图上的任意一点,你可以进行求导,得到曲线上每一点的切线斜率,所得到的数值,即为该点处的瞬时速度,然后你再求一次导,得出它的加速度

耶鲁公开课 - 基础物理课程节选