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A disc is rolling on an inclined plane w...

A disc is rolling on an inclined plane without slipping. The velocity of centre of mass is `V`. These other point on the disc lie on a circular are having same speed as centre of mass.
When a disc is rolling on an inclined plane. The magnitude of velocities of all the point from the contact point is same, having distance equal to radius `r`.

A

Statement-1 is True, Statement-2 is Ture , Statement -2 is a correct explanation for statement -1.

B

Statement-1 is True, Statement-2 is True , Statement-2 is NOT a correct explanation fro Statement -1.

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A circular disc rolls down on an inclined plane without slipping. What fraction of its total energy to translational?

    A
    `2/3`
    B
    `3/2`
    C
    `5/7`
    D
    `7/5`

  • A hollow sphere rolls down a 30^@ incline of length 6m without slipping. The speed of centre of mass at the bottom of plane is

    A
    `6ms^(-1)`
    B
    `3ms^(-1)`
    C
    `6sqrt(2)ms^(-1)`
    D
    `3sqrt(3)ms^(-1)`

  • The acceleration of the centre of mass of a uniform solid disc rolling down an inclined plane of angle theta is

    A
    `(1)/(3) g sin theta`
    B
    `(2)/(3) g sin theta`
    C
    `g sin theta`
    D
    `(1)/(4) g sin theta`

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