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# AQA A2 Mathematics MM2B Mechanics 2 - Monday 22nd June 2015 [Exam Discussion Thread] watch

1. Got mew as 1/3 and theta as 1.15

Please someone tell me it's correct xoxo
2. (Original post by Number Nine)
Got mew as 1/3 and theta as 1.15

Please someone tell me it's correct xoxo
I got 1.15 but no one at my school could do the last question
3. I want to curl up and die. That exam ruined me and my chances of going to my firm uni. ****.
4. Gosh I got the expression for the jumper right but didn't realized I had to devide by 7 I kept dividing by 5 for some reason and just left the expression how many marks do you think I would have lost?
5. i can not do the last question at all. i hope what i did for the rest of the question will be right
6. Overal a tricky paper. I got mew to be 0.866
7. (Original post by olatee)
Gosh I got the expression for the jumper right but didn't realized I had to devide by 7 I kept dividing by 5 for some reason and just left the expression how many marks do you think I would have lost?
that will get you 0 ums overall
8. I got 1.15 for angle as well hope its right was scared to see that was 9 marks

Last q was so messed up, only managed to cancel 'mg' in last minute. did anyone get root(3)a or something similar for distance of the second reaction from P?
9. What did people get for the minimum and maximum resultant forces?
10. did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
11. (Original post by KP7991)
What did people get for the minimum and maximum resultant forces?
i dont remember exact values but it was something in 2000s for me like 212* and 210* ?? where * is a no
12. (Original post by sum1random)
did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
Yep
13. (Original post by sum1random)
did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
yes but i rounded 27.06 to 27.1 as answers are to 3 significant figures
14. I thought find theta was way too short for 9 marks so got a bit worried.

(Original post by KP7991)
What did people get for the minimum and maximum resultant forces?
I got 2120 and 2140 to 3sf but no idea if it's right.
15. (Original post by Red Fox)
I thought find theta was way too short for 9 marks so got a bit worried.

I got 2120 and 2140 to 3sf but no idea if it's right.
same
16. (Original post by sum1random)
I got 1.15 for angle as well hope its right was scared to see that was 9 marks

Last q was so messed up, only managed to cancel 'mg' in last minute. did anyone get root(3)a or something similar for distance of the second reaction from P?
Yes
17. (Original post by bw_wwfc)
yes but i rounded 27.06 to 27.1 as answers are to 3 significant figures
Answers are only to 3sf when you have to use a calculator, you didn't need to use one to get 27.06
18. I got (root3)/((root3) +1) for the last question.

Anyone agree?
19. (Original post by bw_wwfc)
yes but i rounded 27.06 to 27.1 as answers are to 3 significant figures
hmm well i may have forgotten to round, hope dont lose any marks ms usually allows AWRT?
20. (Original post by sum1random)
did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
I got that!

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