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In the following figure, a sphere of rad...

In the following figure, a sphere of radius 3m rolls on a plank. The accelerations of the sphere and the plank. The accelerations of the sphere and the plank are indicated. The value of `alpha` is

A

`3 rad//s ^(2)`

B

`6 rad//s^(2)`

C

`3 rad //s^(2)` (opposite to the direction shown in figure)

D

`1 rad //s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`a_(1) =R alpha -a_(2)`
`3= 3 alpha -6`
`9=3 alpha`
`alpha =3 rad //s ^(2)`
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Knowledge Check

  • In Fig a sphere of radius 2 m rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of alpha is

    A
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