Dynamics (mechanics)

In classical mechanics, dynamics is the study of forces and their effect on motion. It is in contrast to statics, which deals with forces on objects at rest. The fundamental principle of dynamics is linked to Newton's second law.

Subdivisions

Rigid bodies

Fluids

Applications

Classical dynamics finds many applications:

• Aerodynamics, the study of the motion of air
• Brownian dynamics, the occurrence of Langevin dynamics in the motion of particles in solution
• File dynamics, stochastic motion of particles in a channel
• Flight dynamics, the science of aircraft and spacecraft design
• Molecular dynamics, the study of motion on the molecular level
• Langevin dynamics, a mathematical model for stochastic dynamics
• Orbital dynamics, the study of the motion of rockets and spacecraft
• Stellar dynamics, a description of the collective motion of stars
• Vehicle dynamics, the study of vehicles in motion

Generalizations

Non-classical dynamics include:

• System dynamics, the study of the behavior of complex systems
• Quantum dynamics analogue of classical dynamics in a quantum physics context
• Quantum chromodynamics, a theory of the strong interaction (color force)
• Quantum electrodynamics, a description of how matter and light interact
• Relativistic dynamics, a combination of relativistic and quantum concepts
• Thermodynamics, the study of the relationships between heat and mechanical energy

See also

• Analytical dynamics
• Ballistics
• Contact dynamics
• Dynamical simulation
• Kinetics (physics)
• Multibody dynamics
• n-body problem
• Newtonian dynamics

References