Register to reply

Energy formulation of classical mechanics?

by Logic Cloud
Tags: classical, energy, formulation, mechanics
Share this thread:
Logic Cloud
#1
Apr5-13, 06:43 AM
P: 14
When discussing the different formulations of classical mechanics, those that are always mentioned are Newtonian, Lagrangian and Hamiltonian mechanics. However, it is my understanding that when dealing with conservative forces in Newtonian mechanics, we choose to work with energy instead of forces because it makes things easier. Isn't this energy approach a seperate formulation of classical mechanics just as much as Lagrangian and Hamiltonian mechanics?
Phys.Org News Partner Physics news on Phys.org
On-chip topological light: First measurements of transmission and delay
A two-stage trap for single protons leads to measurement of their magnetic properties
Unexpected phenomenon discovered at the surface of a transition metal oxide material
DrewD
#2
Apr5-13, 06:59 AM
P: 445
Not really (although it depends on what exactly you count as a formulation). Energy conservation can solve some problems, but it not enough information to fully describe mechanics.

Or, the answer could be yes, but you must add rules until you have Lagrangian or Hamiltonian mechanics.


Register to reply

Related Discussions
Terminal Velocity In Glycerin 2.10 in Classical Mechanics Advanced Physics Homework 2
Newton's third breakage in Goldstein's classical mechanics Classical Physics 5
Quantum to classical transition or classical limit ? Quantum Physics 0
Classical mechanics application book Science & Math Textbooks 0
What are the classical Textbooks for quantum mechanics and electromagnetism? Science & Math Textbooks 8