1. F = ma F = Force m = Mass a = Acceleration

2. The Manned Manoeuvring Unit

3. 250 N 50 N 200 N Example Find the resultant force: Add the all the forces up to replace them with just one 250 + - 50 = 200 Find the acceleration: a = F / m a = 200 / 100 a = 2 m/s/s m = 100 kg

4. 160 N 200 N 1 m = 100 kg

5. 2 200 N30 N m = 100 kg

6. 3 30 N 115 N m = 100 kg

7. 4 75 N m = 100 kg

8. 5 40 N 20 N m = 75 kg

9. 6 100 N15 N m = 50 kg

10. 7 4 N 7 N m = 68 kg

11. 8 45 N 80 N m = 150 kg

12. 9 84 N36 N m = 58 kg

13. 10 43 N 57 N m = 32 kg

14. 11 177 N 32 N m = 75 kg

15. 12 75 N 100 N 25 N m = 98362 kg

16. 1 Answers 40 N 2 170 N 3 85 N 4 0 N 5 20 N 6 85 N 7 3 N 8 35 N 9 48 N 14 N 145 N 0 N 10 11 12

17. Accelerations 1 0.4 m/s² 2 1.70 m/s² 3 0.85 m/s² 4 0 m/s² 5 0.27 m/s² 6 1.7 m/s² 7 0.04 m/s² 8 0.23 m/s² 9 0.83 m/s² 10 0.44 m/s² 11 1.93 m/s² 12 0 m/s²