摘要
利用Tracker视频分析软件对乒乓球回滚过程进行追踪记录,得到了乒乓球回滚运动平动位移和角位移的实时图像.通过拟合实验数据,测量出了回滚运动中滑动摩擦系数、空气阻力系数及滚动摩擦系数,结果表明:回滚运动中滚动摩擦和空气阻力不能忽略,空气阻力与运动速度的一次方成正比.
The experimental process of table tennis ball's rollback was tracked by the software Tracker,and the real-time images of the translational and angular displacement were depicted.The coefficients of sliding friction,air resistance and rolling friction were obtained by fitting the experimental data.The conclusion was drawn that,when analyzing the rollback of table tennis ball,the influences of air resistance and rolling friction cannot be neglected,and air resistance is proportional to the speed of motion.
出处
《物理实验》
2017年第11期18-20,25,共4页
Physics Experimentation
基金
2015年校级科研课题(No.DSK201513)
