Physics
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単振り子なのですが、青色のところはどうしたらl cosθとわかりますか
(2)
l
V(x) = mgh
e
mg
mg (l- l cos 0)
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単振り子なのですが、青色のところはどうしたらl cosθとわかりますか
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なるほど！ありがとうございます！！