e = 100 object Mass Initial Final v Initial Final Initial Final (kg) V (m/s) momentum momentum kinetic kinetic (m/s) (kg.m/s) (kg.m/s) energy energy blue 5.0 + 8.0 O.C 40 kg*m/s 0 kg*m/s 160 J OJ green 5.0 0.0 + 8.0 Okg*m/s 40 kg*m/s 0 160J total 10 kg 8m/s 8m/s 40 kg*m/s 40kg*m/s 160J 160J