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Math Help - Generalised energy and energy (lagrangian mechanics)?

  1. #1
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    Generalised energy and energy (lagrangian mechanics)?

    I'm doing lagrangian mechanics and trying to understand my notes, are these three statements correct:

    1. If kinetic energy is quadratic then energy equals generalised energy.
    2. Saying kinetic energy of a system is quadratic is the same as saying none of the position vectors in a system depend explicitly on time.
    3. A lagrangian can be independent of time (generalised energy is conserved) even if kinetic energy is not quadratic (energy DOESN'T equal generalised energy)
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  2. #2
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    Re: Generalised energy and energy (lagrangian mechanics)?

    Can a Mod delete this, no answer and I worked it out.
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  3. #3
    A Plied Mathematician
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    Re: Generalised energy and energy (lagrangian mechanics)?

    We don't generally delete threads. I have marked it as "Solved", however.
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