When you have calculated or measured it.
when you know both speed and direction of an objects motion you know the velocity of an object.
Velocity
I'm pretty sure its the acceleration. If its not that, its the Velocity.
You have to know what velocity means to answer this. So the correct answer is S h i t i for get bye
By changing its direction.
The distance it travels in a caertain amount of time as well as the direction
To determine the relative velocity between two objects, you can subtract the velocity of one object from the velocity of the other object. This will give you the relative velocity between the two objects.
no
Calculate the average velocity for the objects.
A change in an objects velocity is called acceleration. Velocity is defined as an objects speed of travel AND its direction of travel. Acceleration can change only an objects speed, only its direction or both. If there is no acceleration acting on the object, then the velocity remains constant.
To know an object's velocity, you need both its speed (magnitude of the velocity) and direction. Velocity is a vector quantity that includes both the speed and direction of motion. It is typically represented as a magnitude and a direction, such as 50 m/s east.
Objects with greater mass resist changes in velocity more than light objects. Additionally, objects with higher inertia or momentum also resist changes in velocity. Friction and air resistance can also act to resist changes in velocity.