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338 bytes added ,  03:07, November 1, 2009
Clarified definition; added graphing example
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A '''vector quantity''' is physical measurement that contains directional information,<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> as opposed to a [[scalar quantity]].
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A '''vector quantity''' is a measurement that contains both magnitude<ref>Stewart, James. ''Calculus: Early Transcendentals.  Brooks/Cole, 2008</ref> and directional information,<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>.  It is different from a [[scalar quantity]], which contains only magnitude.
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Force is an example of a vector quantity.  
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Vectors are usually graphed as arrows in a [[Cartesian coordinate system]], pointing from the origin to a point.
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Force is an example of a vector quantity, because it includes both a magnitude (push) and a direction (the direction the force is in).
    
For example, when an airplane is taking off, the air under the wings is exerting a force in an upward direction, gravity is exerting a force in a downward direction, the engine is exerting a force pushing the plane forward, while winds may be exerting forces from side to side.  
 
For example, when an airplane is taking off, the air under the wings is exerting a force in an upward direction, gravity is exerting a force in a downward direction, the engine is exerting a force pushing the plane forward, while winds may be exerting forces from side to side.  
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