In the arrangement shown in figure pulley is smooh and massless and string is light .Frication coeffcient between A and B is mu friction is absentbetweenA and plane .Selcet the correct alternative(s) .

In the arrangement shown in figure pulley is smooh and massless and st

1.	In the arrangement shown in figure pulley is smooh and massless and string is light .Frication coeffcient between A and B is mu friction is absentbetweenA and plane .Selcet the correct alternative(s) .
Answer» ACCELERATION of the SYSTEM is zero if `muge(m_(B)-m_(A))/(2m_(B))tan thetaand m_(B)gtm_(A)` Forcwe of friction between A and B is zero if `m_(A) = m_(B) ` b will cetainly move upwards if `m_(B)ltm_(A)` Tension in the string is mg `(sintheta -mu costheta)` if `m_(A)= m_(B)=m` Answer :a,b,c