In the figure shown, the coefficient of friction between the two blocks is 0.1 and coefficient of friction between the block B and ground is 0.2, masses of A and B are 20kg and 40kg respectively. where `a_(A)=` acceleration of A and `a_(B)=` acceleration of B.

`{:(,"Column I",,"Column II"),((A),F=50N,(P),a_(A)=0m//s^(2)),((B),F=150N,(Q),a_(A)=0.5m//s^(2)),((C),F=200N,(R),a_(B)=0.5m//s^(2)),(,,(S),a_(B)=1.5m//s^(2)):}`

Explanation

`f_("max")` between A and B
`rArr0.1xx200rArr20N`
`f_("max")` between A and ground
`rArr0.2xx600=120N`
`F=50N a_(A)=a_(B)=0 m//sec^(3)`
`F=150N a_(A)=a_(B)=0.5 m//sec^(2)`

F=200N
`a_(A)=1m//sec^(2) a_(B)=1.5m//sec^(2)`