9. misconception: when a tire rolls down the road the friction present is kinetic or sliding.
9. misconception: when a tire rolls down the road the friction present is kinetic or sliding.
Answer
Brief Explanations:
The friction when a tire rolls is static friction as the point of contact between the tire and the road is momentarily at rest relative to the road at each instant. Kinetic or sliding friction occurs when two surfaces slide relative to each other, which is not the case in pure rolling.
Answer:
The statement is a misconception. The friction present when a tire rolls down the road is static friction (not kinetic or sliding).