Difference between revisions of "Work"

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(Some fairly big changes.)
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''W'' = F · d
 
''W'' = F · d
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Or:
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''W'' = F d Cosθ
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Where θ is the angle that separates the vectors.
  
 
Work is a transfer of [[energy]]; if ''W'' is positive, there is a transfer of energy ''to'' the system, and if ''W'' is negative there is a transfer of energy ''from'' the system.
 
Work is a transfer of [[energy]]; if ''W'' is positive, there is a transfer of energy ''to'' the system, and if ''W'' is negative there is a transfer of energy ''from'' the system.

Revision as of 07:57, 17 October 2007

In physics, work refers to the product of force and distance vectors [1].

W = F · d

Or:

W = F d Cosθ

Where θ is the angle that separates the vectors.

Work is a transfer of energy; if W is positive, there is a transfer of energy to the system, and if W is negative there is a transfer of energy from the system.

Its units are that of force multiplied by distance, in SI this is Newton · Meter, or Joule

References

  1. Serway and Beichner, Physics for Scientists and Engineers, Fifth Edition