direction+of+motion
61uniform circular motion — Motion of a particle moving at a constant speed on a circle. Though the magnitude of the velocity of such an object may be constant, the object is constantly accelerating because its direction is constantly changing. At any given instant its… …
62reverse motion — motion that is going in the opposite direction …
63Retrograde and direct motion — Direct motion is the motion of a planetary body in a direction similar to that of other bodies within its system, and is sometimes called prograde motion. Retrograde motion is motion in the opposite direction. In the case of celestial bodies,… …
64Mechanics of planar particle motion — Classical mechanics Newton s Second Law History of classical mechanics  …
65Retrograde motion — This article is about retrograde motions of celestial bodies relative to a gravitationally central object. For the apparent motion as seen from a particular vantage point, see Apparent retrograde motion. Retrograde orbit: the satellite (red)… …
66Circular motion — Classical mechanics Newton s Second Law History of classical mechanics  …
67Centrifugal force (planar motion) — In classical mechanics, centrifugal force (from Latin centrum center and fugere to flee ) is one of the three so called inertial forces or fictitious forces that enter the equations of motion when Newton s laws are formulated in a non inertial… …
68Perpetual motion — For other uses, see Perpetual motion (disambiguation). Robert Fludd s 1618 water screw perpetual motion machine from a 1660 wood engraving. This device is widely credited as the first recorded attempt to describe such a device in order to produce …
69Newton's laws of motion — For other uses, see Laws of motion. Classical mechanics …
70Uniform circular motion — There are two types of circular motion: uniform circular motion and non uniform circular motion.Uniform circular motion describes motion in which an object moves with constant speed along a circular path. VelocityFigure 1 illustrates velocity and …
