论文部分内容阅读
近日有学生向笔者询问一道题目的解法,原题目如下:一位观光游客(年逾70)被撞死在斑马线上,肇事司机在经过律师授意后,一口咬定是老人在没有示意的情况下突然快速地走出安全岛向南而行,虽然他已经紧急刹车但还是发生了不幸。汽车撞上老人后又通过了19.7m停下来,出事点D距安全岛1.3m。但经警方调查取证后发现老人本是一直向北而行的,这到底是怎么回事?为了清楚的了解事故现场,现以图示之。
Recently, some students asked the author for a solution to the problem. The original title was as follows: A sightseeing tourist (more than 70 years old) was killed on the zebra crossing. The driver of the accident, after being counseled by the lawyer, stated that the old man was suddenly not showing up. Quickly walked out of the security island and headed south. Even though he had already braked in an emergency, he was still in misfortune. After the car hit the old man, it passed through 19.7m and stopped. The accident occurred at a distance of 1.3m from the safety island. However, after the police investigation and evidence collection, it was found that the old man was always going northward. What is going on here? To clearly understand the scene of the accident, it is shown here.