Definition of Imagery Imagery means to use figurative language to represent objects, actions, and ideas in such a way that it appeals to our physical senses. Usually it is thought that imagery makes use of particular words that create visual representation of ideas in our minds.
A velocity vector is an arrow that shows direction and speed of motion of a GPS site. The velocity vector for each site shown in Figure 2 is calculated from data like those shown in Figure 1. A vector is a mathematical construct that has a magnitude and a direction.
which is interpreted as. 1  The magnitude of the velocity vector is the speed along the path. 2  The direction of the velocity vector is tangent to the path. 3  The magnitude of the acceleration vector along the path is the time rate of change of speed. The magnitude of the acceleration vector normal to the path is the centripetal acceleration as it goes around the instantaneous radius of curvature $\rho(t)$. The combined magnitude is the combination of the above and does not have a direct interpretation.