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A sphere is rolled on a rough horizontal...

A sphere is rolled on a rough horizontal surface. It gradually slows down and stops. The force of friction tries to

A

decrease the linear velocity

B

increase the angular velocity

C

increase the linear momentum

D

decrese the angular velocity

Text Solution

Verified by Experts

The correct Answer is:
A, B
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Knowledge Check

  • A sphere is rolled on a rough horizontal surface. It gradually slows down and finally stops. The force of friction tries to

    A
    decrease the angular velocity of the sphere
    B
    increase the angular velocity of the sphere
    C
    decrease the linear velocity of the sphere
    D
    increase the linear momentum of the sphere

  • A body of mass m, having momentum p, is moving on a rough horizontal surface. If it is stopped in a distance x, the coefficient of friction between the body and the surface is given by

    A
    `mu=(p^(2))/(2gm^(2)x)`
    B
    `mu=(p^(2))/(2mgx)`
    C
    `mu=(p)/(2mgx)`
    D
    `mu=(p)/(2gm^(2)x)`

  • Assertion : When a sphere is rolls on a horizontal table it slows down and eventually stops. Reason : When the sphere rolls on the table, both the sphere and the surface deform near the contact. As a result, the normal force does not pass through the centre and provide an angular declaration.

    A
    Assertion is correct, reason is correct, reason is a correct explanation for assertion.
    B
    Assertion is correct, reason is correct, reason is not a correct explanation for assertion
    C
    Assertion is correct, reason is incorrect
    D
    Assertion is incorrect, reason is correct

    • Similar Questions

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    A force (F = Mg) is applied on the top of a circular ring ofmass M and radius R keot on a rough horizontal surface. If the ring rolls without slipping, the minimum coefficient of friction required is

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    A solid sphere is rolled on a rough surface and it is found that sphere stops after some time.

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