Is static friction greater than kinetic friction?
Understand the Problem
The question is asking whether the force of static friction, which resists the initiation of sliding motion between two surfaces at rest, is greater than the force of kinetic friction, which acts on sliding objects. This concerns the principles of physics related to frictional forces.
Answer
Static friction is greater than kinetic friction.
The final answer is static friction is greater than kinetic friction because of the interlocking of surface irregularities between two objects at rest.
Answer for screen readers
The final answer is static friction is greater than kinetic friction because of the interlocking of surface irregularities between two objects at rest.
More Information
Static friction is greater because the irregularities of surfaces at rest interlock better, creating more force. Once motion starts, these interlocking points break away, thus reducing friction.
Tips
Avoid assuming frictional forces behave the same for all types of motion; static friction generally exceeds kinetic friction.
Sources
- Types of friction - ck12.org
- Why is static friction greater than kinetic friction? : r/askscience - reddit.com
- Why is static friction greater than kinetic friction? - Motion Control Tips - motioncontroltips.com
