We did a demonstration there with two vibrating objects with a spring, but yet the center of mass was moving with a constant velocity.
我们做过演示的，弹簧连接两个振动物体，但是质量重心，却保持稳定速度。
Can you see that the center of mass is moving very uniformly, or can you not see that?
你能看到物体重心吗，它稳定地运动，你们能看到吗？
You're not moving, you're in the center of mass.
你没有移动，你处于质量重心。
应用推荐