In other words, because the potential energy is related to the position, if it is a non-conservative force, the work done from A to B will change with different paths, so if the potential energy at point A is known, the potential energy at point B still has different answers. (In fact, a non-conservative force can also be expressed as the curl of a vector, so that non-unique vector is often regarded as the potential energy of that non-conservative force, such as magnetic potential. )
China University of Science and Technology (this university is often called "China Un