高考考纲中,力学实验总共有7个,其中“研究匀变速直线运动”、“验证牛顿第二定律”、“探究动能定理”、“验证机械能守恒定律”都要利用到纸带,根据纸带求物体的加速度是非常重要的内容,下面归纳出根据纸带求加速度的4种常用方法。一、根据△s=aT~2求解例1如图1甲所示为“探究加速度与物体质量、物体受力的关系”的实验装置。在实验过程中,打出了一条纸带如图1乙所示,计时器打点时间间 There are altogether 7 mechanics experiments in the college entrance examination program, among which “Research uniform speed linear motion”, “Newton’s second law of verification”, “Probing kinetic theorem”, “Prove the law of conservation of mechanical energy” The use of paper tape, according to the tape object acceleration is very important content, the following summarizes the paper according to the acceleration of the four commonly used methods. First, according to △ s = aT ~ 2 Solution Example 1 shown in Figure 1 A as “to explore the relationship between acceleration and the object mass, the object force ” experimental device. During the experiment, a tape was printed as shown in Fig. 1 B, and the timer was operated for a while