So the whole system collides and afterwards you have here the sum of the total masses and it just stands still, because I told you that they are going to stick together.
整个系统碰撞，砰的一声，碰撞之后，总的质量和，它们静止不动，因为我已经说过，它们粘在了一起。
If you want to say glove, but don't know how, just take two probable words (hand + shoe) and stick them together.
如果你想说手套，但不知道怎么说，那就把两个可能的单词(手+鞋)组合在一起。
If you want to say glove, but don't know how, just take two probable words (hand + shoe) and stick them together.
如果你想说手套，但不知道怎么说，那就把两个可能的单词(手+鞋)组合在一起。
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