Difference between revisions of "Velocity"

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(Created page with 'File:lighterstill.jpgright|frame In physics, '''velocity''' is the rate of change of position. It is a vector physical [[quantity]...')
 
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The rate of change of velocity is [http://en.wikipedia.org/wiki/Acceleration acceleration] – how an object's speed or direction [[changes]] over time, and how it is changing at a particular point in time.[http://en.wikipedia.org/wiki/Velocity]
 
The rate of change of velocity is [http://en.wikipedia.org/wiki/Acceleration acceleration] – how an object's speed or direction [[changes]] over time, and how it is changing at a particular point in time.[http://en.wikipedia.org/wiki/Velocity]
====References==
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==References==
 
* Robert Resnick and Jearl Walker, ''[http://www.saburchill.com/physics/chapters/0083.html Fundamentals of Physics]'', Wiley;  ISBN 0471232319.
 
* Robert Resnick and Jearl Walker, ''[http://www.saburchill.com/physics/chapters/0083.html Fundamentals of Physics]'', Wiley;  ISBN 0471232319.
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==External links==
 
==External links==
 
*[http://www.physicsclassroom.com/Class/1DKin/U1L1d.html Physicsclassroom.com], Speed and Velocity
 
*[http://www.physicsclassroom.com/Class/1DKin/U1L1d.html Physicsclassroom.com], Speed and Velocity
 
*[http://www.scs.cmu.edu/~rapidproto/mechanisms/chpt1.html Introduction to Mechanisms] (Carnegie Mellon University)
 
*[http://www.scs.cmu.edu/~rapidproto/mechanisms/chpt1.html Introduction to Mechanisms] (Carnegie Mellon University)

Revision as of 00:54, 4 March 2010

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Velocityimage.jpg

In physics, velocity is the rate of change of position. It is a vector physical quantity; both speed and direction are required to define it. In the SI (metric) system, it is measured in meters per second: (m/s) or ms−1. The scalar absolute value (magnitude) of velocity is speed. For example, "5 meters per second" is a scalar and not a vector, whereas "5 meters per second east" is a vector. The average velocity v of an object moving through a displacement (Δx) during a time interval (Δt) is described by the formula:

Velocity.jpg

The rate of change of velocity is acceleration – how an object's speed or direction changes over time, and how it is changing at a particular point in time.[1]

References

External links