Einstein's elevator; Artillery range; Uniform acceleration and circular motion using dimensional analysis.
爱因斯坦电梯；炮火射程；匀加速度和圆周运动的量纲分析。
It starts from rest and falls vertically downward with uniform acceleration.
它从静止开始以匀加速度竖直下落。
Using air cushion slide-way and general computer counter to measure the acceleration in uniform linear motion, the error of this experiment is -0.67 percent.
利用气垫导轨及电脑通用计数器测定匀加速直线运动的加速度．测定误差为-0.67%。
应用推荐