The second case, I bounce one car onto another one - which is twice the mass — - certain velocity which I don't know what it is — and now what are we going to get?
而第二个例子中，用一辆车撞另一辆，后一辆质量是它的二倍-，不知道速度多大-，现在我们得到什么？
2
First, on each bounce the velocity is cut to 85% of the previous bounce, to make the bounces decay more quickly.
首先，每次弹起的高度切到前一次的85%，使弹起更快的衰竭。
3
The hitting velocity is improved considerably with widened stringing area and increased bounce strength.