The speed of an object can be found by dividing the distance travelled by the object by the time taken for the object to travel that distance.
Speed=Distance/Time
when you know both speed and direction of an objects motion you know the velocity of an object.
The speed varies according to the refractive index of the objects.
Speed only tells how fast something is going, while velocity tells speed and direction.
It is known as the vector.
Green
Different objects can have different speeds; also, the same object can have one speed now, and a different speed later.
Instantaneous Speed.
Subsonic
"speed" or "the speed"
translatory motion
slow it down, like you
The time and distance between two reference points, then compute the average speed.