NEET Physics Friction MCQ Question
Consider a diagram showing a wheel rolling on a horizontal surface. The contact area between the wheel and the surface is marked. Which of the following best describes the role of rolling friction in this scenario?
Rolling friction arises due to the deformation of surfaces in contact.
Rolling friction is less than static friction but more than sliding friction.
Rolling friction acts perpendicular to the contact surface.
Rolling friction increases the speed of the wheel.
Correct Answer
Detailed Explanation
Rolling friction arises because the surfaces in contact get momentarily deformed, leading to a finite contact area, which opposes motion.
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