You go around in a circle, and all of a sudden you no longer have the pull or the push and you go around in a spiral and obviously, that is not the case.
原本是圆周运动，突然间，推力和拉力都没有了，这就会呈螺旋状运动，显然，这是不对的。
If you look at the motion of the planets in the sky, you will find that they don't simply go around the earth in a continuous circle.
抬头仰望天空中行星的运动，你将会发现它们并不是简单地绕着地球旋转。
Instead of just somewhere,maybe I will have the origin,and I am trying to make it go around the origin in a circle at a certain angular velocity.
特别地，取原点,让物体以一定的角速度，围绕原点旋转。
Instead of just somewhere,maybe I will have the origin,and I am trying to make it go around the origin in a circle at a certain angular velocity.
特别地，取原点,让物体以一定的角速度，围绕原点旋转。
应用推荐