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单摆振动过程中在何处加速度有极大值或极小值?在中学物理教学过程中时常会涉及到这个问题.部分师生通常会默认在最大偏角处或平衡位置处,而忽视对此问题的深入分析.本文对此问题作一深入全面的研究.如图1所示,一个单摆摆长为 L,最大偏角为 a(a≤90°),当它摆至偏角为θ时,速度为 v,由机械能守恒定律得
Where does the acceleration have maximum or minimum value during the process of single pendulum vibration? This problem will often be involved in the middle school physics teaching process. Some teachers and students usually default to the maximum declination or equilibrium position, and ignore the pair. An in-depth analysis of this issue. This article makes a thorough and comprehensive study of this issue. As shown in Figure 1, a single pendulum swing length is L, and the maximum declination angle is a (a≤90°) when it is tilted to the declination angle. At θ, the speed is v, which is derived from the conservation of mechanical energy.