Exams › NEET › Physics

The coefficient of limiting friction between the surfaces of contact is the ratio of the \( \ldots \). friction to the normal reaction

1. Limting
2. sliding
3. rolling
4. any of these

Correct answer: sliding

Solution

Limiting friction is the maximum friction available just before slipping begins, and it is defined as the ratio of this friction to the normal reaction. Among the choices, this corresponds to sliding friction in the sense of impending motion between surfaces.

Related NEET Physics questions

• \( g c m s^{-2} \) is also known as
• Point where whole weight of body acts vertically is called
• In a physical balance working on the principle of moments, when \( 5 \mathrm{mg} \) weight is placed on the left plan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct?
• A box is placed on an inclined plane and has to be pushed down. The angle of inclination is :
• A rubber ball of mass \( 4 \mathrm{kg} \) has the same diameter as a plastic ball of mass 0.5 kg. Both the balls are dropped simultaneously from the roof of a building.When they are \( 8 \mathrm{m} \) above the ground,they have the same
• A circular road of radius r is banked for a speed \( \mathbf{v}=40 \mathrm{km} / \mathrm{hr} . \) A car of mass \( \mathrm{m} \) attempts to go on the circular road. The friction coefficient between the tyre and the road is negligible.

⚔️ Practice NEET Physics free + battle 1v1 →