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Question about Lagrangian density
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[QUOTE="TSny, post: 6427104, member: 229090"] Hello. For me, the problem statement does not clearly describe the system. Did you give the complete wording of the problem as it was given to you? Were you given a figure similar to the one that you posted from Wikipedia? Are you sure that the system in your problem is the same as the system in the Wikipedia article? I ask this because a massive spring (without a lump of mass on the end) still makes an interesting dynamical system. Also, the problem statement does not mention that the system is hanging vertically in a gravitational field. [/QUOTE]
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Question about Lagrangian density
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