LAWS OF STATIC FRICTION (COLUMB’S LAW OF FRICTION)
1.
The force of friction is always acting opposite
to the direction of motion of the body.
2.
The magnitude of the force of friction is
exactly equal to the force which tends to move the body CP = F
3.
The force of limiting friction bears a constant
ratio with the normal reaction (R) between the contact surface i.e. F/R =
constant = μ (co-efficient of froction)
4.
The force of friction is independent of the area
of the contact between the surface.
5.
The frictional force depends upon the roughness
of the surface in contact.
0 comments:
Post a Comment