Show that an extremal path is never that of a local maximum

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Reference no: EM13965691

Consider the action for a particle in a potential U.

a. Show that an extremal path is never that of a local maximum for the action. ("Local" means relative to nearby paths).

b. Find an example in which an extremal path is that of a local minimum for the action.

c. Find an example in which an extremal path is not that of a local minimum for the action.

Reference no: EM13965691

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