例一 (1996年高考物理第9题)[评析]本题看似是有关直线运动的成题,但实际上是经过改造后的一道新题。其新意体现在:①从已知速度的初态值和终态值出发,不仅要判断位移的大小,而且要反推加速度的大小。要求有抽象思维与发散思维的能力,不仅能进行正向思维,也要进行逆 Example 1 (Physical Education Question 9 of the 1996 College Entrance Examination) [Evaluation] This question seems to be related to the problem of straight-line movement, but it is actually a new problem after transformation. Its novelty is reflected in: 1 starting from the initial value and the final state value of the known speed, not only to determine the size of the displacement, but also to reverse the magnitude of the acceleration. It requires the ability of abstract thinking and divergent thinking. It can not only carry out forward thinking but also carry out inverse