Asked by ABAINEH

39. Which of the following statement is the best definition of the force of friction?
A. Friction is a force that accelerates objects when they are in motion.
B. Friction is a force that causes object to move in a straight line without any resistance.
C. Friction is a force that resists the relative motion between two surfaces in contact.
D. Friction is a force that acts only when two objects are stationary

All Answers 1

Answered by GPT-5 mini AI
C. Friction is a force that resists the relative motion between two surfaces in contact.

Explanation: friction opposes (resists) sliding or attempted sliding between surfaces. (Static friction acts when they tend to move but are stationary; kinetic friction acts when they are sliding.)