Coefficient of friction depends upon

The coefficient of friction is defined as the ratio of the force of friction acting between two objects and the force which is pushing them together. The value of the coefficient of friction varies from zero to one. The coefficient of friction depends on the nature of the surface, coefficient of friction depends upon.

The coefficient of friction depends on the material and roughness of the two surfaces in contact. As long as the normal force is constant, the maximum possible friction does not depend on the area of the surfaces in contact. Last updated on Mar 19, With Diploma in Engineering as the basic, this is a golden opportunity for job seekers. Get Started.

Coefficient of friction depends upon

The coefficient of friction depends on the material and roughness of the two surfaces in contact. As long as the normal force is constant, the maximum possible friction does not depend on the area of the surfaces in contact. Last updated on Apr 12, The application process was started on 1st December Get Started. English Hindi. This question was previously asked in. Attempt Online. Area of contact only Nature of surface only Both a and b None of these. Explanation: The coefficient of friction depends on the material and roughness of the two surfaces in contact. Law of limiting friction for dry surfaces: When two bodies are in contact, the direction of the force of friction on one of them is opposite to the direction in which this body has the tendency to move.

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The friction force is the force exerted by a surface when an object moves across it - or makes an effort to move across it. For an object pulled or pushed horizontally the normal force - N - is simply the gravity force - or weight :. Kinetic or sliding frictional coefficient only when there is a relative motion between the surfaces. It is commonly thought that the static coefficients of friction are higher than the dynamic or kinetic values. This is a very simplistic statement and quite misleading for brake materials. With many brake materials the dynamic coefficient of friction quoted is an "average" value when the material is subject to a range of sliding speeds, surface pressures and most importantly operating temperatures. If the static situation is considered at the same pressure, but at ambient temperature, then the static coefficient of friction is often significantly LOWER than the average quoted dynamic value. Kinetic or sliding frictional coefficients are used with relative motion between objects. Static frictional coefficients are used for objects without relative motion. Note that static coefficients are somewhat higher than the kinetic or sliding coefficients.

Coefficient of friction depends upon

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Friction can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Kinetic energy is converted to thermal energy whenever motion with friction occurs, for example when a viscous fluid is stirred. Another important consequence of many types of friction can be wear , which may lead to performance degradation or damage to components. Friction is a non-conservative force — work done against friction is path dependent. In the presence of friction, some kinetic energy is always transformed to thermal energy, so mechanical energy is not conserved. Friction is not itself a fundamental force.

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Indian Coast Guard Assistant Commandant. India Post Mail Guard. HAL Management Trainee. The force of friction is dependent upon the types of materials of the two bodies in contact. Bihar Vidhan Sabha Office Attendant. MP Cooperative Bank Clerk. EMRS Librarian. RBI JE. As long as the normal force is constant, the maximum possible friction does not depend on the area of the surfaces in contact. Rajasthan Gram Vikas Adhikari. Bihar Sakshamta Pariksha. Bihar Police SI.