The coefficient of friction between the ...

The coefficient of friction between the block A of mass m & block B of mass `2m` is `mu`. There is no friction between block B & the inclined plane. If the system of blocks A & B is released from rest & there is no slipping between A & B then :

`2theta lt sin^(-1)(2mu)`

`theta lt tan^(-1)(mu)`

`2 theta lt cos^(-1)(2mu)`

`2 theta lt tan^(-1) (mu//2)`

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