enkelrörelse

Enkelrörelse is a Swedish term used in physics, kinematics and related disciplines to describe a movement that can be described by a single coordinate, typically occurring along a straight line. In its common usage, enkelrörelse refers to uniform rectilinear motion, where an object moves with constant velocity and zero net acceleration.

Mathematically, simple motion can be expressed as x(t) = x0 + vt, where x is position, t is time, and v is constant. In this case, the velocity is constant and the acceleration a(t) = 0. The concept provides a baseline model for understanding how displacement relates to time and velocity, against which more complex motions can be compared.

Enkelrörelse is distinguished from accelerated motion, oscillatory motion, and rotational motion, all of which involve additional degrees of freedom or changing dynamics. It serves as a fundamental example in introductory treatments of kinematics and is often used to illustrate the basic relationships between displacement, velocity and time.

In practice, enkelrörelse appears in applications such as the design of straight-line actuators and in analyses of one-dimensional motion in physics problems. In biomechanics and robotics, the term may be used more loosely to describe a basic, one-dimensional movement primitive that can be combined with other motions to form more complex sequences.

Note: Depending on the text, enkelrörelse can sometimes refer to a general one-dimensional motion described by a single generalized coordinate, even if velocity is not strictly constant. See also: kinematics, rectilinear motion, uniform motion, one-dimensional motion.