After being struck by lightning, Barry Allen wakes up from his coma to discover he's been given the power of super speed, becoming the Flash, fighting crime in Central City. Greg Berlanti, Geoff Johns, Andrew Kreisberg.
vector sum, resultant-a vector that is the sum of two or more other vectors. radius vector-a line connecting a point in space to the origin of a polar coordinate system. radius vector-a line connecting a satellite to the center of the body around which it is rotating.
A vector is something that mathematicians and engineers use to represent or calculate a force that has direction. The vector will show the direction of the force and the size of the force as well. Sometimes vectors are represented by arrows, with length or thickness of the arrow representing force, and direction representing direction. Sometimes vectors are represented by sets of numbers. Often vectors are used in spacecraft navigation.