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

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    Got mew as 1/3 and theta as 1.15

    Please someone tell me it's correct xoxo
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    (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
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    I want to curl up and die. That exam ruined me and my chances of going to my firm uni. ****.
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    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?
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    i can not do the last question at all. i hope what i did for the rest of the question will be right
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    Overal a tricky paper. I got mew to be 0.866
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    (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
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    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?
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    What did people get for the minimum and maximum resultant forces?
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    did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
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    (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
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    (Original post by sum1random)
    did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
    Yep
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    (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
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    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.
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    (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
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    (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
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    (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
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    I got (root3)/((root3) +1) for the last question.

    Anyone agree?
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    (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?
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    (Original post by sum1random)
    did any1 get 27.06e^[-10/3t] + 2.94 for velocity for jumper?
    I got that!
 
 
 
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