velocity
the speed and the direction of a moving object
Velocity is a measure of the displacement of an object with respect to time. It is a vector quantity, meaning that it has both magnitude (numerical value) and direction. The standard unit for velocity is meters per second (m/s) or kilometers per hour (km/h).
The formula for calculating velocity is:
Velocity = Displacement / Time
Displacement refers to the change in position of an object, from its initial position to its final position. Time refers to the duration of the displacement.
Velocity can be positive, negative, or zero, depending on the direction of the displacement. When the velocity is positive, it means that the object is moving in the positive direction, and when it is negative, it means that the object is moving in the negative direction. When the velocity is zero, it means that the object is not moving at all.
It is important to note that velocity is not the same thing as speed. Speed only considers the magnitude of the displacement, while velocity considers both magnitude and direction. Therefore, an object with a constant speed but changing direction has a changing velocity.
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