Question

multiple choice question
the force exerted on one surface by a second surface when there is no motion between the two surfaces is called

○ oppositional friction.
○ static friction.
○ total friction
○ fnetic friction.

Explanation:

• Oppositional friction: Not a standard term in physics for this context.
• Static friction: Acts when there is no relative motion between two surfaces in contact.
• Total friction: A non - specific and not the correct term for this particular situation.
• Kinetic friction: Acts when there is relative motion between two surfaces.

Since the question specifies no motion between the two surfaces, static friction is the relevant force.

Answer:

static friction.