一道中等难度水平的试题居然难倒了部分教师,这完全出乎命题者的意料之外.是命题者错误地估计了该题的难度系数?还是老师们觉得题目太简单而不值得一做?或是老师们真的不会做?原题再现:某学校开展“青少年科技创新比赛”活动,“喜洋洋”代表队设计了一个遥控车沿直线轨道AC作匀速直线运动的模型.甲、乙两车同时分别从A、B出 A difficult level of the test actually stumbled part of the teacher, which is completely beyond the expectations of the proponent is the proponent mistakenly estimated the difficulty of the problem coefficient? Or the teachers think the title is too simple and not worth doing? Or the teachers really do not? Original title reproduction: a school to carry out “youth science and technology innovation competition ”, “radiant ” team designed a remote control car along the straight track AC for uniform linear motion model. A, B two cars at the same time from A, B out