The angle is increasing at a steady rate, so we know it's going at a steady speed.

转过的角度以恒定速率增加,所以我们知道它以一个恒定的速度运动

耶鲁公开课 - 基础物理课程节选

The angle is increasing at a steady rate, so we know it's going at a steady speed.

转过的角度以恒定速率增加,所以我们知道它以一个恒定的速度运动

耶鲁公开课 - 基础物理课程节选