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# Generalise Noether's theorem

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1. I'm not sure how to generalise Noether's theorem.For this L, I think B⋅x˙ (that's an x dot) is conserved so I tried to relate F and K to this and try to show that that was conserved but got no where. any ideas?
2. (Original post by physics4ever)

I'm not sure how to generalise Noether's theorem.For this L, I think B⋅x˙ (that's an x dot) is conserved so I tried to relate F and K to this and try to show that that was conserved but got no where. any ideas?
Observe that . Furthermore, using the chain rule, express as a time derivative. Hence deduce a conserved quantity.

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