9. please help

3.2 m's 2.4 kg 8.4 m/'s 9.5 kg The two objects shown above collide head-on. The velocity of the 9.5 kg object after the collision is 5.4 m/s to the left. 9. The velocity of the 2.4 kg object after the collision is * 1 point 15 m/s ( Right] 8.7 m/s [Left] 8.0 m/s [Right] 6.2 m/s [Left]