A2.0-g particle moving at 8.4 m/s makes a perfectly elastic head-on collision with a resting 1.0-g object. (a) find the speed of each particle after the collision. 2.0 g particle 2.8 correct: your answer is correct. m/s 1.0 g particle 11.2 correct: your answer is correct. m/s (b) find the speed of each particle after the collision if the stationary particle has a mass of 10 g. 2.0 g particle 5.6 correct: your answer is correct. m/s 10.0 g particle 2.8 correct: your answer is correct. m/s (c) find the final kinetic energy of the incident 2.0-g particle in the situations described in parts (a) and (b). ke in part (a) incorrect: your answer is incorrect. use the final velocity you calculated for the 2.0-g particle in part (a) to find its final kinetic energy. j ke in part (b) 0.062 incorrect: your answer is incorrect. use the final velocity you calculated for the 2.0-g particle in part (b) to find its final kinetic energy. j in which case does the incident particle lose more kinetic energy? case (a) case (b) correct: your answer is correct.