As the fiber traces out its path, the momentum vector of the light traces out a path on the sphere in momentum space.
12.
If these events are repeated, the angular momentum vectors of the individual rotors will bunch more and more closely together round the forward direction.
13.
It's somewhat arcane, but basically this table tells you all the ways that angular momentum vectors can be summed in quantum mechanics.
14.
As the diver leaves the board, the total angular momentum vector is horizontal, pointing directly to the left for a forward dive for example.
15.
Likewise, the momentum vector is the velocity vector ( a polar vector ) times mass ( a scalar ), so is a polar vector.
16.
A particular example is with energy and momentum in the energy-momentum relation derived from the four-momentum vector ( see also below ).
17.
Thus, in 3 dimensions, we expect the position and momentum vectors to be twice as likely to be perpendicular to each other as parallel.
18.
The momentum vector of a particle corresponds to its motion, with units of [ mass ] [ length ] [ time ] " 1.
19.
As before, we may obtain a conserved binormal vector "'B "'by taking the cross product with the conserved angular momentum vector
20.
Introducing the assumption ( true of most physical forces, as they obey angular momentum vector "'L "'is constant ( conserved ).
