undisturbed motion

undisturbed motion

[¦ən·di′stərbd ′mō·shən]
(physics)
The steady state of a system before perturbations are introduced.
References in periodicals archive ?
The more easily ascertainable observational facts are: (1) the undisturbed downward motion of bodies on an inclined plane is accelerated; (2) their undisturbed motion up an inclined plane is decelerated; and (3) the cause of projectile motion is not the motion of the surrounding air.