乘过山车时,那种风驰电掣的快感很富有刺激性。可是,过山车是靠什么原理工作的?它是否安全呢?在过山车的哪个位置最让人提的话,那么你只要接着读下去,很快就会知道了。你在乘坐过山车的过程,实际上是在上一堂生动的物理课。因为在乘坐过山 When riding a roller coaster, the exhilarating thrill is very stimulating. However, what principle does the roller coaster work on? Is it safe? In which position on the roller coaster is the most noteworthy, then you just have to read it and you will soon know. The process of riding a roller coaster is actually a vivid physics lesson. Because you ride over the mountain