QUIZ 8///General Theory of Collisions and Momentum Conservation: 2 (b) and (c) only, 8 , 13, Inelastic collisions  63, 74, 29, elastic collisions 31, 35, 18 (check if elastic), Impulse = Force*time = change in momentum 40 (try 44 !) center of mass 46 (try 52 and 51)  

2. In units kg*m/s, momentum components Px, Py  (a) 180,  312  (b)  -24, 27  (c) 29.7, 61.3  (d) 5.7, -73.7
8. (a) -1.74 m/s  (b) 180 J
74.
960 m/s
18. (a) 53.1 degrees (b) -0.0015
40. 0.593 kg*m/s
46. (a) 1350 m/s  (b) 1.2x10 8 J