's ke and 12 - 0.9- 16, respectively , and if their collision is perfectly elastic , then predict the velocity of each ball following the collision ....

Having trouble with these problems in physics.What would be the answer?

's ke and 12 - 0.9- 16, respectively , and if their collision is perfectly elastic , then predict the velocity of each ballfollowing the collision .-- balls marks in opposite directions have velocities v . .. = 14_ in / s and Vzix = - 8. 4_ m/ s. It their masses are myIZITB4 .VIfix2 .- 17.41_ m / S)b.- 20.76_ m / SC.- 16.31_ m / s- 12.71_ m / se.F .- 20. 91_ m / s- 15.55_ m / s5 .V 2 {, x -a.4. 633_ m / sb.12. 08_ m / sC .6. 094_ m / sd.6.867_ m / se.1 1. 98_ m / sf.4. 45_m / s