鉴于动力车启动问题涉及的知识面广,对学生的能力要求高,因此在各级考试中备受命题者的青睐。动力车启动问题分两类:一是恒功率启动问题;二是匀加速启动问题。从运动的角度看,两类问题涉及到高考考查的三种直线运动,即匀速直线运动、匀变 In view of the wide range of knowledge involved in the start-up of electric vehicles and the high requirements on students' abilities, it has been favored by the proponents at all levels of examination. Power car start-up problems in two categories: First, constant power start-up problem; Second, uniform acceleration start problem. From the sports point of view, two types of problems involve the three kinds of linear motion of the entrance examination, that is, uniform linear motion, uniform