Ball 1 of mass 2m travels at a velocity of 4v m/s south and collides with ball 2 of mass 24m which is travelling at a velocity of v/4 north. if the final velocity of ball 1 is 2v north, what is the final velocity of ball 2?
O v/2 north
O v/6 south
O v/12 north
O v/4 south