When the force applied to an object dips below the force of static friction but remains greater than the force of kinetic friction, the object will transition from a state of rest to a state of motion. Let's break down the scenario:
Resting State: Initially, when the force applied is zero or very small, the object is at rest, and the force of static friction comes into play. The force of static friction is the force exerted between two surfaces in contact that prevents relative motion when the object is at rest.
Increasing Applied Force: As the applied force gradually increases, the force of static friction also increases in magnitude to match and counterbalance the applied force. The object remains at rest as long as the applied force does not exceed the maximum force of static friction.
Transition to Motion: Once the applied force surpasses the maximum force of static friction, the force of static friction can no longer hold the object in place. At this point, the object starts to overcome static friction and begins to move. The transition from rest to motion is often characterized by a sudden release or breakaway motion.
Kinetic Friction: Once the object is in motion, a different type of friction comes into play: kinetic friction. The force of kinetic friction is generally lower than the force of static friction and acts to oppose the relative motion between the object and the surface it is moving on.
In summary, when the applied force dips below the force of static friction but remains greater than the force of kinetic friction, the object transitions from a state of rest to a state of motion. The force of static friction prevents the object from moving until the applied force exceeds its maximum value, at which point kinetic friction takes over to oppose the motion.