3 - KINETIC AND STATIC FRICTION Flashcards
1
Q
is a force that resists the motion of one surface relative to another with which it is in contact. Generally, it is directed opposite to the direction of motion and parallel to the surface in contact.
A
friction
2
Q
A ball rolling over a smooth surface will eventually come to rest because of _______.
A
friction
3
Q
t or f
Friction can be eliminated completely, but it can be reduced to exceedingly small values in certain situations.
A
F
it can never be eliminated
4
Q
There are two kinds of friction forces
A
the static frictional force, (0 ≤ fS uN) and
kinetic frictional force fk = pN
5
Q
are independent of the surface area of the body
A
coefficient of static and kinetic friction
6
Q
force that is directed perpendicular to the surface of contact.
A
Normal force
