Page 192 - Schaum's Outline of Theory and Problems of Applied Physics

CHAP. 14] SIMPLE HARMONIC MOTION 177

Answers to Supplementary Problems

14.1. The mass must be reduced to one-fourth its original value.
√
14.2. (a) 2 greater (b) No change
14.3. 2.06 kN/m

14.4. 5.6 m/s
14.5. (a) 0.125 ft (b) 0.3125 ft·lb (c) 0.393 s
14.6. (a) 1.47 cm (b) 2.16 × 10 −3 J (c) 0.24 s

14.7. 2.21 Hz

14.8. 37 mm
14.9. 1.1 kg

14.10. 11 Hz

14.11. 0.300 m/s; 2.96 m/s 2
14.12. 0.049 J

2
14.13. 7.85 ft/s; 493 ft/s ; 15.4 lb
14.14. 1.11 Hz

14.15. 9.73 in.

14.16. 9.87 m/s 2
14.17. 0.69 m/s

14.18. 3.85 s

14.19. 2.30 s
14.20. 79 N·m/rad