# momentum

(redirected from linear momentum)
Also found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia.
Related to linear momentum: angular momentum

## momentum

[mo-men´tum]
the quantity of motion; the product of mass by velocity.

## mo·men·tum

(mō-men'tŭm)
The tendency of an object in motion to continue in motion.
[L., abridgment of movimentum, movement]

## momentum

the 'quantity of motion' of a body or object. A vector quantity. linear momentum the product of mass and velocity. The change in linear momentum is equal to the linear impulse. conservation of linear momentum in the absence of external unbalanced forces, the total linear momentum of colliding bodies or objects will remain constant. Commonly applied to racquet/ball impacts. angular momentum the product of moment of inertia and angular velocity. conservation of angular momentum in the absence of an external moment (torque), the angular momentum of a rotating body will remain constant. Often applied to low-velocity flight (e.g. gymnastics) to explain how a body can increase or decrease angular velocity by manipulating moment of inertia (e.g. by 'tucking'). trading of angular momentum if, in the absence of an external moment (torque), an object or body is rotating about one axis (e.g. somersaulting) and rotation about another axis is introduced (e.g. tilt), the result will be a rotation about a third axis (e.g. twist) due to the vector nature of angular momentum. transfer of angular momentum can occur from one part of a body to another in the absence of an external moment (torque) (e.g. if one part of a body increases angular velocity, another part must decrease to conserve angular momentum).

## mo·men·tum

(mō-men'tŭm)
The tendency of an object in motion to continue in motion.
[L., abridgment of movimentum, movement]

## momentum,

n quantity of motion, expressed as the product of mass and velocity.

## momentum

the quantity of motion; the product of mass and velocity.
References in periodicals archive ?
section]) Neither the propagation of the space functions nor their relation to the linear momentum density are specified here.
For such a body we can easily calculate the orbital radius if we know the angular momentum and the linear momentum.
The incremental form of the balance law of linear momentum can be written in the updated Lagrangian formulation as:
If m = 3 (in the plane symmetry only one coordinate is of interest) then the left part of (6b) is the time rate of increase of the linear momentum of the volume V (actually it is a force applied to the volume V ).
There is no energy flow in this system, but there is a flow of linear momentum.
That means that the small volume that includes the first boundary gets negative outside (we always consider the outside normal to the closed surface [summation]) flow of linear momentum.
2], total momentum, kinetic energy and linear momentum of the particle, and that the particle is a de Broglie wave, it obeys Newton's laws of motion, de Broglie relations, Schrodinger equation in small geometries, Newton's law of gravitation, and Galilean-Lorentz-Einstein transformation at high velocities.
gives further the particle's kinetic energy and in a similar fashion its linear momentum [p.
Corollary II: If the time rate of change of the kinetic energy of a particle is zero, linear momentum is conserved.
Equation (17) is the mathematical statement of the theorem of the conservation of linear momentum .
Second Law: The time rate of change of linear momentum of a body is proportional to the force acting upon it and occurs in the direction in which the force acts.

Site: Follow: Share:
Open / Close