Two balls shown in the figure collide at the origin and after the collision, m2 moves in the positive y- direction as represented. a) Find the velocity of the mi after the collision. b) If the collision takes 0.025 s, find the average force on m2 during the collision. (Give the results in unit vector notation) V-10 m/s m= 4 kg 37 y Vi = 4 m/s X m = 6 kg before collision y V2=5 m/s m after collision X