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If the force of friction is equal to the...

If the force of friction is equal to the force applied, then friction may be

A

static

B

kinetic

C

limiting

D

no conclusions can be drawn

Text Solution

Verified by Experts

The correct Answer is:
A, C
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Knowledge Check

  • If the object is at rest, then friction may be

    A
    static
    B
    kinetic
    C
    limiting
    D
    no conclusions can be drawn

  • For an object sliding on a plane the force of friction is less if the plane is inclined instead of being horizontal, because,

    A
    coefficient of friction decreases
    B
    normal force decreases
    C
    effective mass decreases
    D
    for an angle of inclination `theta` friction is inversely proportional to tan `theta`

    • Similar Questions

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    A block of mass 5 kg rests on a table. 8 N horizontal force is applied to push the block. Find out the force of friction between the block and the table. Given, mu_s = 0.3 and mu_k = 0.2 , between the block and the table and g = 10 ms^-2 .

    A-block of mass 5 kg. rests on a table. 8 N horizontal force is applied to push the block. Find out the force of friction between the block and the table. Given mu_s = 0.3 and mu_k = 0.2, between the block and the table and g = 10 ms^-2 .

    Explain why friction is necessary to make the disc in Fig. 7.41 roll in the direction indicated. (a) Give the direction of frictional force at B, and the sense of frictional torque, before perfect rolling begins. (b) What is the force of friction after perfect rolling begins ?

    Friction is a self adjusting force- explain.

    The angle of inclination of a plane is 30^(@) with the horizontal. A uniform circular disc of mass m and radius R is rolling up the plane. If coefficients of both static and sliding friction are mu and only frictional and gravitational forces are effective what is the force of friction acting on the disc and what is its direction along the inclined plane?

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