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velocity

Also known as velocity vector

Velocity is a measurement of speed in a certain direction of motion. It is a fundamental concept in kinematics, the branch of classical mechanics that describes the motion of physical objects. Velocity is a vector quantity, meaning that both magnitude and direction are needed to define it (velocity vector). The scalar absolute value (magnitude) of velocity is called , a quantity that is measured in metres per second (m/s or m⋅s−1) in the SI (International System of Units) system. For example, "5 metres per second" is a scalar, whereas "5 metres per second east" is a vector. If there is a chang

AI overview

Velocity measures how fast something is moving in a particular direction, combining both speed and direction into one concept. It matters because it's a fundamental tool scientists and engineers use to describe and predict how physical objects move.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Physical quantity.name: Velocity
Physical quantity.image: US Navy 040501-N-1336S-037 The U.S. Navy sponsored Chevy Monte Carlo NASCAR leads a pack into turn four at California Speedway.jpg
Physical quantity.image_size: 260px
Physical quantity.caption: As a change of direction occurs while the racing cars turn on the curved track, their velocity is not constant even if their speed is.
Physical quantity.symbols: , , ,
Physical quantity.otherunits: mph, ft/s
Physical quantity.baseunits: m/s
Physical quantity.dimension: L T−1

via Wikipedia infobox

Wikidata facts

Image: Vector snelheid-Plain.svg

Show 2 more facts

Commons category: Velocity
Stack Exchange tag: physics.stackexchange.com/tags/velocity

Sources (3)

via Wikidata · CC0

~16 min read

Article

25 sections

Contents

Definition
Average velocity
Instantaneous velocity
Difference between speed and velocity
Units
Equation of motion
Average velocity
Special cases
Relationship to acceleration
Constant acceleration
Quantities that are dependent on velocity
Momentum
Kinetic energy
Drag (fluid resistance)
Escape velocity
The Lorentz factor of special relativity
Relative velocity
Scalar velocities
Coordinate systems
Cartesian coordinates
Polar coordinates
See also
Notes
References
External links

== Definition == === Average velocity === The average velocity of an object over a period of time is its change in position, divided by the duration of the period, given mathematically as \bar{v}=\frac{\Delta s}{\Delta t}.