The 2 things are speed and distance.
Velocity includes speed and direction.
Change in position and change in time velocity= delta displacement/delta time
Speed and Velocity are two different things . Velocity- "the rate at which an object changes its position." Speed- "How fast an object is moving". To calculate speed and velocity, you first need to calculate distance and time. Velocity is considered to be a more logical term
If movement is in two dimensions: the x-coordinate of the velocity, and the y-coordinate of the velocity. Or alternatively: the magnitude of the velocity, and the direction. If movement is in three dimensions, you need to know three things, for example, x-coordinate, y-coordinate, and z-coordinate of the velocity, or magnitude of the velocity and two components of direction.
two things that describe velocity is distance and time.
To determine velocity, you need to know the object's displacement (change in position), the time it takes to travel that distance, and the direction in which the object is moving. Velocity is a vector quantity that includes both speed and direction, differentiating it from speed which is a scalar quantity.
a distance and time
There is a direction and magnitude.
velocity is what is known as a vector quantity. What this means is it needs both a DIRECTION and a MAGNITUDE for the velocity to be fully described. that's what you need.
speed and direction
-- mass -- velocity
speed and direction