1. a-f do in class
2. a) 23.8 N, b) 7.73 N
3. a) see in class b) 30.0 N left c) 330. N up d) 331 N at 84.8 degrees left and up from horizontal
4. 23. m/s^2
5. 1.4 m/s^2
6. 14 N
7. 2.1 kg
8. 37 N
9. Fa = 3.6 N, Fb = .4 N
10. 98.1 N
11. 51.0 kg, 112 lbs
12. mass stays the same, weight decreases
13. -4.2 m/s^2
14. 5 kg
15. a) 981 N, b) 640 N
16. 730 N
17. 3.73 m/s^2
18. 0.444
19. a) -.981 m/s^2 b) 29.4 m
20. 68 degrees
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