This is the diagram of the experimenLab 3. Static and Kinetic Friction.t, the simulator controlling the acting force through the force sensor connecting to the interface and will give us the graph F vs time. To understand the theory study the section 6.1, 6.2 from the book. The static friction force is = (1) , is the static friction force, is the coefficient of static friction and is the normal force. The kinetic friction force is = (2) , is the kinetic friction force, is the coefficient of kinetic friction and is the normal force. The normal force in a horizontal surface when the pulling force is acting in horizontal direction will be equal to the weight , so =