Definitions for: Momentum

[n] the product of a body's mass and its velocity; "the momentum of the particles was deduced from meteoritic velocities"
[n] an impelling force or strength; "the car's momentum carried it off the road"

Webster (1913) Definition: Mo*men"tum, n.; pl. L. Momenta, F. Momentums. [L.
See Moment.]
1. (Mech.) The quantity of motion in a moving body, being
always proportioned to the quantity of matter multiplied
into the velocity; impetus.

2. Essential element, or constituent element.

I shall state the several momenta of the distinction
in separate propositions. --Sir W.
Hamilton.

Synonyms: impulse

See Also: angular momentum, force, forcefulness, physical property, strength

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