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Two blocks are kept on an inclined plane...

Two blocks are kept on an inclined plane and tied to each other with a mass-less string. Coefficient of friction between `m_(1)` and inclined plane is `mu_(1)` & that betweeb `m_(2)` & the inclined is `mu_(2)`. Then :

A

The tension in the string in zero if `mu_(1) gt mu_(2)`

B

The tension in the string is zero if `mu_(1) lt mu_(2)`

C

Tension in the string is always zero irrespective of `mu_(1) & mu_(2)`

D

None of these

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The correct Answer is:
d
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consider the situation shown in figure in which a block 'A' of mass 2 kg is placed over a biock.'B' of mass 4 kg. The combination of the blocks are placed on a inclined plane of inclination 37^(@) with horizontal. The coefficient of friction between block B and inclined plane is mu_(2) and in between the two, blocks is mu_(1) . The system is released from rest. ("Take "g=10m//sec^(2)) If mu_(1)=0.5, mu_(2)=0.5 then :

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consider the situation shown in figure in which a block 'A' of mass 2 kg is placed over a biock.'B' of mass 4 kg. The combination of the blocks are placed on a inclined plane of inclination 37^(@) with horizontal. The coefficient of friction between block B and inclined plane is mu_(2) and in between the two, blocks is mu_(1) . The system is released from rest. ("Take "g=10m//sec^(2)) The frictional force acting between the two blocks in the previous question is :

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