Coulomb friction is the friction between
A. Bodies having relative motion
B. Two dry surfaces
C. Two lubricated surfaces
D. Solids and liquids
Answer: Option A
This Question Belongs to Civil Engineering >> Strength Of Materials
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The weight of a body is due to
A. Centripetal force of earth
B. Gravitational pull exerted by the earth
C. Force of attraction experienced by par-ticles
D. Gravitational force of attraction towards the centre of the earth
The product of either force of couple with the arm of the couple is called
A. Resultant couple
B. Moment of the forces
C. Resulting couple
D. Moment of the couple
A. Density of metal can’t be determined
B. Metal is twice as dense as water
C. Metal will float in water
D. Metal is twice as dense as unknown fluid
Coulomb friction is the friction between
A. Bodies having relative motion
B. Two dry surfaces
C. Two lubricated surfaces
D. Solids and liquids
Coulomb’s law of sliding friction can represent the most fundamental and simplest model of friction between dry contacting surfaces.
When sliding takes place, the coulomb law states that the tangential friction force is proportional to the magnitude of the normal contact force.
It is independent of relative tangential velocity.
Thanks for the answers guys
wrong it should be between 2 dry surfaces B
i was firstly shocked, when they were showing me ans A. as the correct.....
The correct answer is B. between two dry surfaces. Please correct it.
its between two dry surfaces
Coulomb is not having relativ motion