Question 167 of 172

A mass m moving horizontally (along the x-axis) with velocity v collides and sticks to mass of 30m moving vertically upward (along the y-axis) with velocity 2v. The final velocity of the combination is

(a) 14vi^+32vj^                                   (b) 13vi^+23vj^

(c) 23vi^+13vj^                                    (d) 32vi^+14vj^