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研究匀变速直线运动是高中最基本、最重要的一个实验.实验原理为做匀变速直线运动的物体(加速度为a),它在任意连续相等的时间T内的位移差是一个常
The study of uniform linear motion is the most basic and important experiment in high school. The experimental principle is to make a uniform linear motion (acceleration is a), and its displacement in any consecutive equal time T is a constant.