A block A slides over another block B wh...

A block A slides over another block B which is placed over a smooth inclined plane. The coefficient of friction between the two blocks. A and B is `mu`. Mass of block B is two times the mass of block A. The acceleration of the centre of mass of two blocks is

`g sin theta`

`(g sin theta - mu g cos theta)/(3)`

`(g sin theta)/(3)`

`(2g sin theta - mu g cos theta)/(3)`

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