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A mass m moving horizontal (along the x-...

A mass `m` moving horizontal (along the x-axis) with velocity `v` collides and stricks to mass of `3m` moving vertically upward (along the y-axis) with velocity `2v`. The final velocity of the combination is

A

`(2)/(3)v hati+(1)/(3)v hatj`

B

`(3)/(2) v hati+(1)/(4)v hatj`

C

`(1)/(4)v hati+(3)/(2)v hatj`

D

`(1)/(3) v hati+(2)/(3) v hatj`

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