Difference between revisions of "Force"
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| − | A '''force''', defined informally, is a "push or pull" on a physical body. The [[SI]] unit for force is the [[newton]]. Force has [[direction]] as well as [[magnitude]]. | + | A '''force''', defined informally, is a "push or pull" on a physical body. The [[SI]] unit for force is the [[newton]]. Force has [[direction]] as well as [[magnitude]], meaning it's a vector. |
==Formal Definition== | ==Formal Definition== | ||
Revision as of 13:23, 24 December 2008
A force, defined informally, is a "push or pull" on a physical body. The SI unit for force is the newton. Force has direction as well as magnitude, meaning it's a vector.
Formal Definition
A force is that which may cause a physical body with mass to accelerate in a given direction. If the forces acting upon a body cancel out, then the body is in equilibrium and does not accelerate.
See Also
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