Enabling teams and individuals to break out of this "infinite loop" and achieve substantial net productivity gains is the change we're making today.

使团队和个人打破这个”无限循环“并实现真实纯粹的生产力的收获是我们今天要做的变化。

youdao

So, a massless body cannot have a net force on it, because the acceleration of the rope cannot be infinite.

所以没有质量的物体不会受到力,因为绳子的加速度不可能是无穷大

耶鲁公开课 - 基础物理课程节选

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