Discuss the differences between static friction... - SS2 Physics Mechanics - Laws of Motion Question

Static friction and kinetic friction are two types of friction that exist between surfaces. Static friction is the force that opposes the motion of an object at rest, while kinetic friction is the force that opposes the motion of an object already in motion. The main differences between them are as follows:

- Definition: Static friction prevents the initiation of motion, while kinetic friction acts on objects in motion to slow them down.

- Behaviour: Static friction adjusts its magnitude to match the applied force, allowing objects to remain at rest until a force exceeds the maximum static friction. Kinetic friction remains relatively constant once an object is in motion, with its magnitude depending on the coefficient of kinetic friction and the normal force.

- Factors Affecting: The factors affecting static friction include the coefficient of static friction, the normal force, and the roughness of the surfaces. Kinetic friction is influenced by the coefficient of kinetic friction and the normal force.