[Magnum44]

The five laws of friction are as follows:

1) A moving object’s friction is proportional and perpendicular to the normal force.

2) The friction depends on the nature of the surface an object is in contact with.

3) Friction is independent of the area of contact while there is a contact.

4) Kinetic friction doesn’t depend on velocity.

5) The coefficient of kinetic friction is lesser than the coefficient of static friction

Oh, come on now. Minds out of the gutter....

[NohSpinZone]

Here is Professor Vaughn doing laboratory experiments on your five hypotheses.