👉 Retropulsion is a phenomenon where an object moves in a direction opposite to its original motion, often due to external forces. This movement is usually caused by friction or other types of force that oppose the normal motion of the object. The term "retropulsion" refers to this effect and can be used in various contexts such as physics, engineering, and even in computer graphics where it's used to describe the movement of an object when its velocity is reversed compared to its original state.