对由纸带求加速度的实验方法探讨

http://img1.qikan.com.cn/qkimages/xgen/xgen201611/xgen20161121-1-l.jpghttp://img1.qikan.com.cn/qkimages/xgen/xgen201611/xgen20161121-2-l.jpghttp://img1.qikan.com.cn/qkimages/xgen/xgen201611/xgen20161121-3-l.jpghttp://img1.qikan.com.cn/qkimages/xgen/xgen201611/xgen20161121-4-l.jpg
　　一、纸帶信息