Question

To choose stability of a system we perform dU/dx and then d2u/dx2 i know the processs.. but does U mean potential energy always or it means Total energy sometimes

Answer 1

It means always effective potential energy.

Answer 2

what's the difference between effective P.E and normal P.E?

Answer 3

The effective potential energy consists also 'centrifugal potential energy'

Answer 4

ohk