[ v = \sqrt{2gL(1 - \cos\theta)} ] =arctan(μ),代入得到: [ v = \sqrt{2gL \cdot \frac{\sqrt{1 + \mu^2} - 1}{\sqrt{1 + \mu^2}}} ] 最终速度可以表示为: [ v = \sqrt{2gL \cdot \frac{\sqrt{1 + \mu^2} - 1}{\sqrt{1 + \mu^2}}} ]...
[ v = \sqrt{2gL(1 - \cos\theta)} ]
=arctan(μ),代入得到:
[ v = \sqrt{2gL \cdot \frac{\sqrt{1 + \mu^2} - 1}{\sqrt{1 + \mu^2}}} ]
最终速度可以表示为:
[ v = \sqrt{2gL \cdot \frac{\sqrt{1 + \mu^2} - 1}{\sqrt{1 + \mu^2}}} ]

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