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A uniform solid cylinder of radius 'R' h...

A uniform solid cylinder of radius 'R' has a circular cut of radius `(R )/(2)` from the edge, Its mass is M. It is rolling wihtout slipping on a rough horizontal floor. When the cut part is at lowest position, centre of the disc is moving with horizontal velocity v. Choose the alternative:

A

Total kinetic energy at this moment is `(15)/(16)Mv^(2)`

B

Total kinetic energy at this moment is `(15)/(9)Mv^(2)`

C

Velocity of centre of mass of the cylinder at this moment is `(4)/(3)v`

D

Velocity of centre of mass of the cylinder at this moment is `(7)/(6)v`

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The correct Answer is:
A, D
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