Answers to 2 worksheets on acceleration

1. Acceleration Questions: Answers only
1. How long will it take ... t = 4.6 s
2. v = 2.8 m/s
3. d = 6.9 m
4. v = 0.59 m/s
5. d = 78 m
6. v = 21.4 m/s
7. t = 24 s
8. a) t = 2.9 s b) v = 28 m/s
9. a) d = 693 m b) v = 252 m/s
10. d = 1700 m

2. Acceleration II - answers only
1. Donovan Bailey v = 10.2 m/s (100 m)
Michael Johnson v = 10.4 m/s (200 m)
v = 9.20 m/s (400 m)
2. d = 4.2 m
3. d = 100 m
4. v = 5.5 m/s
5. t = 1.5 s
6. v = 9.3 m/s
7. d = 38.4 m; v = 17.3 m/s
8. a) d = 4.8 m b) d = 121 m
c) d = 391 m d) d = 946 m
9. d = 15.0 m
10. total d = 450 m + 900 m = 1350 m
11. a) t = 15.4 s b) d = 427 m
c) v = 200 km/h; yes, it's reasonable