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Mark the correct statements about the fr...

Mark the correct statements about the friction between two bodies

A

static friction is always greater than the kinetic friction

B

coefficient of static friction is always greater than the coefficient of kinetic friction

C

limiting friction is always greater than the kinetic friction

D

limiting friction is never less than static friction

Text Solution

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(b),(c), and (d)
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Knowledge Check

  • Mark the correct statem,ents about the friction between two bodies

    A
    static friction is always greater than the kinetic friction.
    B
    coefficient of static friction is always greater than the coefficient of kinetic friction
    C
    Limiting friction is always greater than the kinetic friction
    D
    Limiting friction never less than static friction.

  • Mark the correct statement(s).

    A
    (a) The work-energy theorem is valid only for particles
    B
    (b) The work-energy theorem is an invariant law of physics.
    C
    (c) The work-energy theorem is valid only in inertial frames of reference.
    D
    (d) The work-energy theorem can be applied in non-inertial frames of reference too.

  • Mark the correct statement(s).

    A
    (a) Total work done by internal forces of a system on the system is always zero.
    B
    (b) Total work done by internal forces of a system on the system is sometimes zero.
    C
    (c) Total work done by internal forces acting between the particles of a rigid body is always zero.
    D
    (d) Total work done by internal forces acting between the particles of a rigid body is sometimes zero.

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