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在讲授有关平抛运动实验的习题时,学生提出如下问题:通过必修一对匀变速直线运动的规律研究得v_(t/2)=v~-,即匀变速直线运动中一段位移中间时刻的速度等于这段位移的平均速度;我们学过平抛运动是匀变速曲线运
In teaching about the flat throwing exercise exercises, the students put forward the following questions: Through compulsory a pair of uniform linear motion law v_ (t / 2) = v ~ -, that is uniform speed linear motion in the middle of a period of displacement The speed is equal to the average speed of this displacement; we have learned that flat throw is a uniform speed curve