👉 In physics, "curvilinear velocity" refers to a vector quantity that is not directly related to straight-line motion. Instead of moving along a straight line, it can be described by an angle or direction. For example, in projectile motion, where an object is launched from a point (the origin), the trajectory can be defined by the position at each time step as well as its velocity. The path can be curved if the object moves with a non-linear velocity vector that depends on its initial