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应用物理模型解题,往往能使复杂的问题简单化,所以在解题的思维过程中,人们常把习题和熟知的模型进行比较,看能否应用模型解题,或创造条件应用模型解题. 一、寻找与模型相同的特点应用模型有些习题.加速度不等于g,且大小方向不变,和竖直上抛运动类似,质点先做匀减速直线运动,速度减小到零后,又做反方向的匀加速直线运动,其减速阶段和加速阶段的特点与竖直上抛运动中的上升阶段和下降阶段一样具有对
Using physical models to solve problems can often make complex problems simpler. Therefore, in the process of solving problem-solving problems, people often compare exercises with well-known models to see if they can use the model to solve problems or create conditional application models to solve problems. First, look for the same characteristics as the model application model some problems. Acceleration is not equal to g, and the size of the same direction, and the vertical throwing motion is similar, the particle first do a straight line deceleration, the speed is reduced to zero, do it again The characteristics of the deceleration phase and the acceleration phase in the uniform acceleration linear motion in the opposite direction are the same as those in the ascending and descending phases in the vertical throwing motion.