Exercises 9.4, page 281

  1. 1. 47.10 mi, 10.27 °  N of E

  2. 3. 8.20 lb, 33.3 °  from the 6.85-lb force

  3. 5. 11,800 N, 47.3 °  above horizontal

  4. 7. 3070 ft, 17.8 °  S of W

  5. 9. 229.4 ft, 72.82 °  N of E

  6. 11. 940 lb, 34 °  from 780 lb force

  7. 13. 21.9 km/h, 34.8 °  S of E

  8. 15. 9.6 m/s2 ,  7.0 °  from vertical

  9. 17. 175 lb, 9.3 °  above horizontal

  10. 19. 540 km/h, 6 °  from direction of plane

  11. 21. T1 = 420 N ,  T2 = 359 N

  12. 23. 27.0 km, bearing 192.4 ° 

  13. 25. 0.94 km, 65 °  S of E

  14. 27. 9.6 km/h

  15. 29. 910 N

  16. 31. T = 389 lb ,  F = 275 lb

  17. 33. 138 mi, 65.0 °  N of E

  18. 35. 79.0 m/s, 11.3 °  from direction of plane, 75.6 °  from vertical

  19. 37. T1 = 517 lb ,  T2 = 659 lb

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