To analyse accelerations of points on plane figure generally the method of base point and the method of instantaneous acceleration center are used.

分析平面图形上点的加速度问题通常用基点法和瞬心法。

youdao

This acceleration that is necessary to make the change in the velocity vector is always pointing towards the center of the circle.

要促使速度矢量，产生如此的变化，所需的加速度，总是指向圆心。

youdao

The point is named instant center acceleration.

这一点称为刚体的瞬时加速度中心。

youdao

This particle is constantly changing its direction, but it therefore has an acceleration and the acceleration, we have shown here, is pointing towards the center.

这个质点恒定地改变它的运动方向,因此它具有加速度,而且这个加速度,我们前面也讲过了,指向圆心

耶鲁公开课 - 基础物理课程节选

You have the same acceleration directed towards the center.

同样是直接指向圆心的加速度

耶鲁公开课 - 基础物理课程节选

This is the acceleration directed toward the center.

加速度方向指向圆心

耶鲁公开课 - 基础物理课程节选

While traction batteries are heavy, and mass is bad for acceleration and agility, the lower center-of-gravity often compensates with higher levels of cornering, especially when a car wears rubber like the Signature Performance edition's sticky 21-inch summer tires.

WSJ: 2012 Tesla Model S Signature Performance Review: I Am Silent, Hear Me Roar | Rumble Seat by Dan Neil