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In physics, dynamics or classical dynamics [1] [2] [3] is the study of forces and their effect on motion. It is a branch of classical mechanics , along with statics and kinematics . The fundamental principle of dynamics is linked to Newton's second law .
There are two main descriptions of motion: dynamics and kinematics.Dynamics is general, since the momenta, forces and energy of the particles are taken into account. In this instance, sometimes the term dynamics refers to the differential equations that the system satisfies (e.g., Newton's second law or Euler–Lagrange equations), and sometimes to the solutions to those equations.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 February 2025. Description of large objects' physics For other uses, see Classical Mechanics (disambiguation). For broader coverage of this topic, see Mechanics. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources ...
Group dynamics, the study of social group processes especially; Population dynamics, in life sciences, the changes in the composition of a population; Psychodynamics, the study of psychological forces driving human behavior; Social dynamics, the ability of a society to react to changes; Spiral Dynamics, a social development theory
In physics, Newtonian dynamics (also known as Newtonian mechanics) is the study of the dynamics of a particle or a small body according to Newton's laws of motion. [1 ...
astrophysics, the physics in the universe, including the properties and interactions of celestial bodies in astronomy; atmospheric physics is the application of physics to the study of the atmosphere; space physics is the study of plasmas as they occur naturally in the Earth's upper atmosphere (aeronomy) and within the Solar System
In physics, physical chemistry and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids – liquids and gases.It has several subdisciplines, including aerodynamics (the study of air and other gases in motion) and hydrodynamics (the study of water and other liquids in motion).
Combining insights from physics on the ergodic hypothesis with measure theory, this theorem solved, at least in principle, a fundamental problem of statistical mechanics. The ergodic theorem has also had repercussions for dynamics. Stephen Smale made significant advances as well.