Science Fair Project Encyclopedia
Impulse
- This article is about the physical quantity of impulse. For other meanings of the term "impulse" please see Impulse (disambiguation)
In classical mechanics, an impulse changes the momentum of an object, and has the same units and dimensions as momentum. The SI unit of impulse is the same as for Momentum, and is kilogram metres per second (kg m /s ). An impulse is calculated as the integral of force with respect to duration.
where
I is the impulse, measured in kilogram metres per second
F is the force, measured in newtons
t is the time duration, measured in seconds
Using the definition of force yields:
See also
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details