一、一道高考试题(2012年山东理综第21题)某同学利用图1所示的实验装置,探究物块在水平桌面上的运动规律。物块在重物的牵引下开始运动,重物落地后,物块再运动一段距离停在桌面上(尚未到达滑轮处)。从纸带上便于测量的点开始,每5个点取1个计数点,相邻计数点间的距离如图2所示。打点计时器电源的频率为50Hz。①通过分析纸带数据,可判断物块在相邻计数 First, a college entrance examination questions (Shandong Science and Technology in 2012 No. 21) Some students use the experimental device shown in Figure 1 to explore the movement of objects in the horizontal table. The blocks start to move under the weight of the heavy objects. After the heavy objects fall to the ground, the blocks move a little longer and rest on the tabletop (not yet reached the pulley). Starting from the point on the tape for easy measurement, take 1 count point every 5 points and the distance between adjacent count points as shown in Figure 2. RBI timer power supply frequency of 50Hz. ① by analyzing the tape data, you can determine the pieces in the adjacent count