Solutions to problems due 11/7

9. b. 1.6 m/s2 at 50 degress
10. b. 088 m/s2 at 11 degrees
17 a.b.T1=77N, T2 = 44 N, c. T1= 199 N, T2= 150 N, T3= 54N
18. 108 N
19.1180N
23. 16N
26. T= 13 N
27. T= 42N, N= 72N, c. a=-5m/s2
34. 10m/s2
39 a. 0.74 m/s2, b. 7.3 m/s2

36. a. a(sled) = 0.62 m/s2, b. a(girl) = 0.13 m/s2, c. x=2.6m
38. F= 0.0022N
44. b)N= 49N
46. N=2.2*10^5 N, b. T=5.0*10^4N
48. a. a=0.970 m/s2, b. T=11.6 N, T2= 34.9 N.