Question

state the empirical laws of static friction and kinetic friction

Answer 1

The law of static friction states that the force of friction, that resists the motion of the body as it starts to fall down the surface, is proportional to the normal (perpendicular) force that the body exerts on the surface.

Answer 2

◆The law of static friction states that the force of friction, that resists the motion of the body as it starts to fall down the surface, is proportional to the normal (perpendicular) force that the body exerts on the surface.

THE FIVE LAWS OF FRICTION

●When an object is moving, the friction is proportional and perpendicular to the normal force (N)

●Friction is independent of the area of contact so long as there is an area of contact.

●The coefficient of static friction is slightly greater than the coefficient of kinetic friction.

●Within rather large limits, kinetic friction is independent of velocity.

●Friction depends upon the nature of the surfaces in contact.