Question

what is the formula for non-conservative forces

Answer 1

they have different formulas!!
for friction it's something like this
\[ F = -\mu N\]

Answer 2

OK, for an occasion when a object goes down a slope

Answer 3

they say that change in KE and PE is the non-conservative

Answer 4

KE and PE are not forces

Answer 5

Ok, sorry for my wording but friction is involved in these energies

Answer 6

well ...friction, air resistances is involved ...so??

Answer 7

Ok, I get you point

Answer 8

Frictional forces are involved ... that does not make gravitational force non conservative ... if you consider motion of particles without friction ... it will be independent of path ... only dependent on final and initial position!!

Answer 9

\(\vec\nabla \times \vec F\neq \vec 0\)