Limitless-X's video: Displacement Described

This video explains about Displacement with awesome illustrations. A displacement is a vector whose length is the shortest distance from the initial to the final position of a point P. It quantifies both the distance and direction of an imaginary motion along a straight line from the initial position to the final position of the point. A displacement may be also described as a 'relative position': the final position of a point (Sf) relative to its initial position (Si), and a displacement vector can be mathematically defined as the difference between the final and initial position vectors: Displacement is usually measured or defined along a straight line. For example, we might speak of the distance between the center of the earth and an orbiting satellite , and measure it as 13,000,000 meters. However, displacement is sometimes measured or defined along curved paths. The most common example is in expressions of the distance between geographic locations on the earth's surface; the equator is approximately 10,000,000 meters from the North Pole, for example. Other examples of nonlinear displacement include the circumference of a subatomic particle, the actual length (as opposed to the straight span) of a sagging rope, or the length of wire that comprises a coil.