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

Options

A. `(1)/(4) v hati+(3)/(2) v hatj`
B. `(1)/(3) v hati+(2)/(3)v hatj `
C. `(2)/(3) v hati+(1)/(3) v hatj`
D. `(3)/(2) v hati+(1)/(4) v hatj`

Answer

A