answer questions 8 and 10 with explanation please

Section 8.5: Inelastic Collisions in One Dimension 3. Mass A (2.0 kg) has an initial velocity of 4 m/s in the +x-direction. Mass B (2.0 kg) has an initial velocity of 5 m/s in the -x-direction. If the two masses have an elastic collision, what will be the final velocities of the masses after the collision? a. Both will move 0.5 m/s in the -x-direction. b. Mass A will stop; mass B will move 9 m/s in the +x-direction. c. Mass B will stop; mass A will move 9 m/s in the -x-direction. d. Mass A will move 5 m/s in the -X-direction; mass B will move 4 m/s in the +x-direction. 9. During an ice show, a 60.0-kg skater leaps into the air and is caught by an initially stationary 75.0-kg skater. a. What is their final velocity assuming negligible friction and that the 60.0-kg skater's original horizontal velocity is 4.00 m/s? m=60.0 kg v1= 4.00 m/s 1.78m/s m2= 75.0 kg 1/2 ml v1 -1/2 (ml+m2)v b. How much kinetic energy is lost? 267 J 10 . IF(N) What is the TOTAL impulse of 20 - -- the system? yright ysicstutorial.org +(s) 2 6 10