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# M1 Jan 03 Mark Scheme watch

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1. Has anyone got it?
2. 1. (a) v = 2.5 m s–1 (b) 15 000 Ns

2. (a) θ = 138.2˚, (b) X = 8.94

3. (a) (–5i + 12j) m s–2 (b) 5.2 N

4. (a) p = 10tj; q = (6i + 12j) + (–8i + 6j)t (b) 18 km (c)

5. T = 11.0 N

6. (b) x < 1

7. (b) T = 4.64 s (c) F = 6390 N (d) Air resistance; variable F

8. (a) T = 4.7 N (b) t = 0.452 s (c) t = 0.485

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Updated: January 11, 2005
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