Home
Class 9
PHYSICS
What is the relation between the normal ...

What is the relation between the normal reaction acting on a surface and the limiting friction on the surface?

A

`mu=F_(r)-N`

B

`mu=F_(r) xx N`

C

`mu=F_(r) // N`

D

none of these

Text Solution

AI Generated Solution

To understand the relationship between the normal reaction acting on a surface and the limiting friction on that surface, we can break down the concepts step by step. ### Step-by-Step Solution: 1. **Define Normal Reaction (N)**: The normal reaction is the force exerted by a surface to support the weight of an object resting on it. It acts perpendicular to the surface. 2. **Define Limiting Friction (F)**: ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • FRICTION

    CENGAGE PHYSICS|Exercise CONSOLIDATED EXERCISE. |1 Videos

  • FRICTION

    CENGAGE PHYSICS|Exercise CONSOLIDATED EXERCISE. (MULTIPAL-CHOICE QUESTION WITH ONE OR MORE THAN ONE CORRECT ANSWER)|3 Videos

  • FRICTION

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES (Read the given statements and select the correct option.)|1 Videos

  • ELASTICITY

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES|10 Videos

  • SOUND

    CENGAGE PHYSICS|Exercise OLYMPIAD AND NTSE LEVEL EXERCISE|10 Videos

Similar Questions

Explore conceptually related problems

For steel surfaces, the coefficient of friction is mu= 0.8 and between teflon surfaces mu= 0.04 . A steel block of mass 2 kg kept on a steel surface has a limiting frictional force f. What should be the mass of a teflon block kept on a teflon surface to have the limiting frictional force same as f? Take g=10 m s^(-1) .

Derive the relation between surface tension and surface energy per unit area.

Knowledge Check

  • The relation between surface tension and surface energy is

    A
    W=A/T
    B
    W=T/A
    C
    T=W/A
    D
    T=W.A

  • Static friction between two surfaces

    A
    prevents the relative motion between them
    B
    opposite to the direction of motion of them
    C
    acts in opposite direction of applied force
    D
    Both (a) and ( c)

  • Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta A force of 49N is just able to move a block of wood weighing 10kg on a rough horizontal surface The coefficient of friction is .

    A
    `0.5`
    B
    `4.9`
    C
    `10//49`
    D
    `49//9.8`

    • Similar Questions

    Explore conceptually related problems

    Relation between field and potential|| Equipotential surface

    Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta The angle of friction in the above question is .

    Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them Fprop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta The acceleration produce in the block in the above question is .

    Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta A horizontal force of 1.2kg is applied on a 1.5kg block which rests on a horizontal surface If the coefficient of friction is 0.3 force of friction is .

    Assertion : Friction is a force which acts in the direction of motion of a body. Reason: Polishing a surface reduces friction of the surface.

    Home
    Profile