Question

The ratio between the force of sliding friction and the normal force of an object is called _____.

-rolling friction
-the drag
-the coefficient of friction
-the starting friction

Answer 1

The ratio between the force of sliding friction and the normal force of an object is called the coefficient of friction.


Hope this helped :)

Answer 2

Answer;

The coefficient of friction

Explanation;

• Friction is a force that opposes motion. Normal force on the other hand is a force that presses two surfaces together and is directed perpendicular to the contact surface; on a level surface. The magnitude of normal force is equal to the force of the object's weight but in the opposite direction.
• The coefficient of friction shows the relationship between the force of friction between tow objects and the normal force between those objects.