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A uniform disc of mass M and radius R is...

A uniform disc of mass M and radius R is hinged at its centre C . A force F is applied on the disc as shown . At this instant , angular acceleration of the disc is

A

`sqrt3F/(MR)`

B

`F/(MR)`

C

`2/sqrt3F/(MR)`

D

`F/(2MR)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • A uniform disc of mass M and radius R is hinged at its centre C. A force F is applied on the disc as shown. At this instant, the angular acceleration of the disc is

    A
    `sqrt(3) (F)/(MR)`
    B
    `(F)/(MR)`
    C
    `2/(sqrt(3)) F/(MR)`
    D
    `F/(2MR)`

  • If a tangential force mg is applied to a disc of mass m and radius r, the angular acceleration produced in it is?

    A
    gr
    B
    g/r
    C
    `(2g)/r`
    D
    2gr

  • A uniform disc of mass m & radius R is pivoted at its centre O with its plane vertical as shown in figure A circular portion of disc of radius (R)/(2) is removed from it. Then choose the correct option(s)

    A
    Time period of small oscillations of remaining portion about `O` is `pisqrt((13R)/(g))`
    B
    Time period of small oscillations of remaining portion about `O` is `2pisqrt((13R)/(g))`
    C
    The centre of mass of the remaining disc is at a distance of `(R)/(6)` from `O`.
    D
    The centre of mass of the remaining disc is at a distance of `(R)/(8)` from `O`.

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