物理极值问题是高考、奥赛中的难点问题,也是热点问题。而此类问题常可以从纯数学观点、数形结合观点、解析几何观点、物理规律及临界条件观点出发思考分析,所以此类问题一般有多解。作为物理极值问题的一个经典例题,求解从足够长斜面水平抛出的小球到斜面的最大距离,在很多复习资料书上都有出现,也有许多教师在求解此 Physical extreme problem is the college entrance examination, the difficult problem in the Orsay is also a hot issue. Such problems can often be from pure mathematical point of view, the combination of digital form point of view, the analysis of geometric perspectives, physical laws and critical conditions point of view thinking and analysis, so there are many such problems. As a classic example of the physical extreme problem, solving the maximum distance from the spherically pitched ball to the bevel at a sufficiently long bevel appears in many review books, and many teachers are solving this