Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Remarks on the conservation of mechanical energy in introductory
  mechanics   We discuss the work-kinetic energy theorem and the mechanical energy
conservation theorem in the context of general physics courses. The motivation
is the fact that all modern texts on introductory mechanics show the same
conceptually dangerous statement that besides obliterating the concept of
mechanical work, diminishing the importance of the work-kinetic energy theorem,
leads to erroneous applications of the energy conservation theorem and at the
same eliminates its relationship with the principle of the conservation of the
mechanical momentum.

8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas