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A block B is at rest on the rough horizo...

A block `B` is at rest on the rough horizontal surface as shown. Another block `A` collides with `B`. Then, which of the following statement is correct?
(`i`) Impulsive friction acts on block `B`.
(`ii`) Conservation of momentum can not be applied on a system `(A+B)` along `x-"axis"` for the situation just before and just after the collision.
(`iii`) Conservation of momentum can be applied on system `(A+B)` along `x-"axis"` for the situation just before and just after the collision.
(`iv`) Block `A` always moves along positive `x-"axis"` after collision.

A

(`i`) and (`ii`)

B

(`i`), (`ii`) and (`iv`)

C

(`i`)(`iv`)

D

(`iii`)

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