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Question 5 question no. 5 is definetly C....because do calculations and u will get different times. 45 degrees gives max range.. so range from 50 degrees and 40 degrees will b same..cos complementry...USING v = u + at ..and say firing was done at 12 m/s for both shots... then if u do...

multiple choice i got 1. d 2. c 3. c 4. d 5. b 6. b 7. a 8. d 9. d 10. c 11. a 12. b 13. d 14. a 15. b 16. d 17. b 18. a 19. b 20. d