Page 81 - Schaum's Outline of Theory and Problems of Applied Physics

66 LAWS OF MOTION [CHAP. 5

5.6. (a) 59 N (b) 0.61 kg

5.7. (a) 2 m/s 2 (b) 19.6 m/s 2
5.8. (a) 64 lb (b) 0.0625 slug

5.9. (a) 196 N (b) 236 N (c) 156 N

2
2
5.10. (a) 2 m/s downward (b) 0 (c) 2 m/s upward
5.11. (a) 9.63 N (b) 6.37 N (c) Upward
5.12. (a) 3 N (b) 30 N

5.13. 0.1 m/s 2

5.14. (a) 1.89 g (b) 222 kN
5.15. (a) 270 N (b) 270 N backward (c) 210 m/s

4
5.16. 5 × 10 N
5.17. (a) 400 lb (b) 125 ft

5.18. (a) 400 lb (b) 125 ft
5.19. (a) 14.4 kN (b) 3.6 kN

5.20. (a) 10 −4 N (b) 0.025 m

5.21. 860 N

5.22. 2.7 m/s 2
5.23. (a) 800 N (b) 865 N (c) 800 N (d) 735 N (e) 0

5.24. (a) Downward (b) No; 1.05 m/s 2

2
5.25. 4.14 m/s ; 4.14 m/s 2
5.26. 16 ft/s 2

5.27. 9.4 s