I'm doing lagrangian mechanics and trying to understand my notes, are these three statements correct:(adsbygoogle = window.adsbygoogle || []).push({});

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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# Generalised energy and energy (lagrangian mechanics)

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