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Practice and Applications

7. $A_{x} = 65.8, A_{y} = 29.3$ $A_{x} = 65.8, A_{y} = 29.3$
9. $A_{x} = - 4.648, A_{y} = - 3.327$ $A_{x} = - 4.648, A_{y} = - 3.327$
11. $R = 602, θ = 57.1 °$ $R = 602, θ = 57.1 °$ with A
13. $R = 6239, θ = 31.91 °$ $R = 6239, θ = 31.91 °$ with A
15. $R = 965, θ = 8.6 °$ $R = 965, θ = 8.6 °$
17. $R = 26.12, θ = 146.03 °$ $R = 26.12, θ = 146.03 °$
19. $R = 71.93, θ = 336.50 °$ $R = 71.93, θ = 336.50 °$
21. $R = 0.9942, θ = 359.57 °$ $R = 0.9942, θ = 359.57 °$
23. $b = 181, C = 64.0 °, c = 175$ $b = 181, C = 64.0 °, c = 175$
25. $A = 21.2 °, b = 34.8, c = 51.5$ $A = 21.2 °, b = 34.8, c = 51.5$
27. $A = 39.88 °, a = 5194, C = 30.03 °$ $A = 39.88 °, a = 5194, C = 30.03 °$
29. $\begin{array}{l} A_{1} = 54.8 °, a_{1} = 12.7, B_{1} = 68.6 °; A_{2} = 12.0 °, a_{2} = 3.24, \\ B_{2} = 111.4 ° \end{array}$ $\begin{array}{l} A_{1} = 54.8 °, a_{1} = 12.7, B_{1} = 68.6 °; A_{2} = 12.0 °, a_{2} = 3.24, \\ B_{2} = 111.4 ° \end{array}$
31. $A = 32.3 °, b = 267, C = 17.7 °$ $A = 32.3 °, b = 267, C = 17.7 °$
33. $A = 176.4 °, B = 1.1 °, c = 5.41$ $A = 176.4 °, B = 1.1 °, c = 5.41$
35. $a = 1782, b = 1920, C = 16.00 °$ $a = 1782, b = 1920, C = 16.00 °$
37. $A = 37 °, B = 25 °, C = 118 °$ $A = 37 °, B = 25 °, C = 118 °$
39. $A = 20.6 °, B = 35.6 °, C = 123.8 °$ $A = 20.6 °, B = 35.6 °, C = 123.8 °$
41. 1300 m
43. $A_{t} = \frac{1}{2} ab; b = \frac{a \sin B}{\sin A};$ $A_{t} = \frac{1}{2} ab; b = \frac{a \sin B}{\sin A};$ substitute
45. $- 155.7 lb,$ $- 155.7 lb,$ 81.14 lb
47. 2100 ft/s
49. $T_{1} = 441 lb, T_{2} = 298 lb$ $T_{1} = 441 lb, T_{2} = 298 lb$
51. $R = 2700 lb, θ = 107 °$ $R = 2700 lb, θ = 107 °$
53. $6.1 m/s, 35 °$ $6.1 m/s, 35 °$ with horizontal
55. 0.11 N
57. 1.52 pm
59. 2.30 m, 2.49 m
61. 0.039 km
63. 32,900 mi
65. 95 m, $14 °$ $14 °$ E of S
67. 2.65 km
69. 190 mi
71. 2510 ft or 3370 ft (ambiguous)
73. 810 N, $36 °$ $36 °$ N of E

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Table of Contents for Practice and Applications

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Table of Contents for
Practice and Applications