This is * the object is still not moving but if I make m2 g a hair less just a teeny-weeny little less it will definitely start to accelerate downwards .

这时， 系统仍然处于静止，但如果物体 二， 稍微 轻一 丁 点， 系统就就一定会向下加速。

Well in the beginning there is only mg on that ball and a teeny-weeny little resistive force .

在开始的时候，只有重力和很 小的，阻力作用 于 物体。