26.1. Appendix A: Answers to Selected Problems (3e) http://www.ck12.org
3. 5,625 J
- 21.2 m/s
- 9.18 m
3.. - b.KE= 504 ,600 J;Ug= 1 , 058 ,400 J;Etotal= 1 , 563 ,000 J
- 34 m/s at B; 28 m/s at D,40 m/s at E,49 m/s at C and F; 0 m/s at H
- 96 m
- 1.7 J
- 1.3 m/s
- 0.4 J, 0 .63 m/s
- 1.2 m/s^2
- 130 J
- 6750 J
- 25 × 105 J
- 5 × 105 J/gallon of gas
- 0.76 m
Ch 3: One-Dimensional Motion
1..
2..
3..
4..
- Zyan
- Ashaan is accelerating because the distance he travels every 0.1 seconds is increasing, so the speed must
be increasing - Ashaan
- Zyan
- Ashaan
5..
6.. - 6 minutes
- d. 20 meters e. 40 meters f. 2.67 m/s g. 6 m/s h. Betweent=15 s andt=20 sec because your position goes
fromx=30 m tox=20m. i. You made some sort of turn- 7.7 m/s^2
- 47 m,150 feet
- 34 m/s
- 1.22 m
- 4.9 m/s
- 2.46 m/s
4.− 4 .9 m/s
- b. 1 second c. at 2 seconds d. 4m
- 250 m
- 13 m/s,−13 m/s