The Impulse reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Impulse

In classical mechanics, an impulse changes the momentum of an object. An impulse is calculated as the integral of force with respect to duration.

Using the definition of force yields:

The SI unit of impulse is the same as for Momentum, and is kilogram metre per second (kg m /s )

See also specific impulse.

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The term can also refer to any short-duration signal such as a nerve impulse, or a notional signal used to calculate impulse response, in the continuous case the Dirac delta function.

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