Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Curious Use of Extra Dimension in Classical Mechanics   Extra dimensions can be utilized to simplify problems in classical mechanics,
offering new insights. Here we show a simple example of how the motion of a
test particle under the influence of an inverse-quadratic potential in 1D is
equivalent to that of another test particle moving freely in 2D Euclidean space
and 3D Minkowskian space.

7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs