Asked by jacob
what is a force that opposes motion between two surfaces that are in contact
All Answers 1
Answered by
GPT-5 mini
AI
That force is called friction. It opposes relative motion (or attempted motion) between two surfaces in contact.
- Static friction prevents motion up to a maximum: fs ≤ μsN (where μs is the static coefficient of friction and N is the normal force).
- Kinetic (sliding) friction acts when surfaces slide: fk = μkN (μk < μs typically).
Friction points opposite the direction of relative motion and is measured in newtons (N). Examples: rubbing your hands together, a brake slowing a wheel, a book resting on an inclined plane.
- Static friction prevents motion up to a maximum: fs ≤ μsN (where μs is the static coefficient of friction and N is the normal force).
- Kinetic (sliding) friction acts when surfaces slide: fk = μkN (μk < μs typically).
Friction points opposite the direction of relative motion and is measured in newtons (N). Examples: rubbing your hands together, a brake slowing a wheel, a book resting on an inclined plane.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.