So, what that means is that if I look at my trajectory at this point, that the acceleration vector is pointing in that direction.
这意味着如果我们在这点观察运动的轨迹，它的加速度是指向这个方向的。
So, the definition will take effect. The acceleration is as a vector, and the acceleration vector is just the derivative of a velocity vector.
有必要对加速度给出一个严格的定义，加速度,作为一个矢量,是速度的一阶导数。
Establish displacement vector equation of mechanism using vector method to infer the speed and the acceleration vector equation.
运用矢量法建立机构的位移矢量方程，推导出速度、加速度矢量方程。
Establish displacement vector equation of mechanism using vector method to infer the speed and the acceleration vector equation.
运用矢量法建立机构的位移矢量方程，推导出速度、加速度矢量方程。
应用推荐