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In figure-2.86, the blockA of mass M(1) ...

In figure-2.86, the blockA of mass `M_(1)` rests on a rough horizontal surface. The coefficient of friction between the block and the surface is `mu`. A uniform plank B, of mass `M_(2)` rests on A. B is prevented from moving by connecting it to a light rod R which is hinged at one end H.The coefficient of friction between A and B is `mu`. Findthe acceleration of blocks A and C.

`[(M_(3)g-mug(M_(1)+2M_(2)))/((M_(1)+M_(3)))]`

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