6. Two small blocks of mass 0.8 kg and 1.2 kg are attached with a light...

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6. Two small blocks of mass 0.8 kg and 1.2 kg are attached with a light inextensible rod which is parallel to the bases of the blocks. The blocks are placed on a plane inclined at 30° to the horizontal with the 1.2 kg block higher than the 0.8 kg block. The coefficient of friction between the 0.8 kg mass and the plane is 0.5 and that between the 1.2 kg mass and the plane is 0.3. 0.8 kg 1.2 kg (a) Determine the acceleration of the system. [7]. (b) Determine the magnitude of the force in the rod making clear whether it is in tension or compression. [3] 6. Two small blocks of mass 0.8 kg and 1.2 kg are attached with a light inextensible rod which is parallel to the bases of the blocks. The blocks are placed on a plane inclined at 30° to the horizontal with the 1.2 kg block higher than the 0.8 kg block. The coefficient of friction between the 0.8 kg mass and the plane is 0.5 and that between the 1.2 kg mass and the plane is 0.3. 0.8 kg 1.2 kg (a) Determine the acceleration of the system. [7]. (b) Determine the magnitude of the force in the rod making clear whether it is in tension or compression. [3]