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How was your maths 42 M1

Discussion in 'International A And AS Level' started by hellodjfos;s'ff, May 16, 2018.

  1. hellodjfos;s'ff

    hellodjfos;s'ff

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    Hey guys just came out of the exam hall, just gave my maths m1 variant 2. How was it for you bros, really easy for me 50/50 in this one
     
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  3. Mts.99

    Mts.99

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    what did u get for power in 2nd question? and distance travelled bw instantaneous rests?
     
  4. armeena

    armeena

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    distance between instantaneous was 20. i don't remember the power answer, lol. what did you get for that?
     
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  5. Mts.99

    Mts.99

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    i got 2060000W lol o_O
     
  6. iamhereforfun

    iamhereforfun

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    lol its correct dw:p
     
  7. hellodjfos;s'ff

    hellodjfos;s'ff

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    I don't remember exactly but I think that is right. All i know is that it was a long answer with a 2 at the start
     
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  8. hellodjfos;s'ff

    hellodjfos;s'ff

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    I was most doubtful about the 1st question lol, i got 10.something, what'd you guys get?
     
  9. hellodjfos;s'ff

    hellodjfos;s'ff

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    Also, what was your distance in the last question and coefficient of friction? I am asking about these as they were the biggest questions
     
  10. muaz_ali

    muaz_ali

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    It was very nice.
    Q1 10.5
    Q2 2060kw
    Q3 41.1 and 3.92
    Q4 19 and 312
    Q5 0.577
    Q6 30 and 20m
    Q7 3 and 4.8, 2.1
    I got these and these are right i confirmed.
     
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  11. hellodjfos;s'ff

    hellodjfos;s'ff

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    Ok niceee, easy then. 50 in that paper definetly
     
  12. muaz_ali

    muaz_ali

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    threshold is expected to be 51 this year.
     
  13. DudeWithoutName

    DudeWithoutName

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    did you confirm with your batch or teachers?
     
  14. hellodjfos;s'ff

    hellodjfos;s'ff

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    Could be, who knows! :p
    But my friends found some parts tough and got several wrong answers, not sure how. The most common wrong answers were like P=1 in Q1, 3000kw in q2 and something like 5 in the coefficient of friction question. These are the common mistakes my friends made, might not be representative of other centres though
     
  15. hellodjfos;s'ff

    hellodjfos;s'ff

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    Pretty sure these are the correct answers as my smart batchmates and I(lol) got these
     
  16. muaz_ali

    muaz_ali

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    woah lol, it was very easy tbh idk how could they get it wrong. i hadn't solved even one full past paper yet and even then i aced it.
     
  17. armeena

    armeena

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    got the exact same answers, so hopefully they're right lmao.
     
  18. hellodjfos;s'ff

    hellodjfos;s'ff

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    Yeah i know right! Didn't have much practice either since I had bio in the morning
     
  19. DudeWithoutName

    DudeWithoutName

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    They got 5.20 because they flipped the direction of P:

    For maximum value: P=20gsin(60)+20gcos(60)μ
    For minimum value: P+20gsin(60)=20gcos(60)μ(Now this is assuming P acts down the slope, alongside component of weight)
    Solving these equations gives μ=5.20
    I honestly dont see whats wrong with this method? Opinions?
     
  20. hellodjfos;s'ff

    hellodjfos;s'ff

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    If anyone gets hold of the mechanics paper, please do post it. I need to check it with my teacher.
     
  21. hellodjfos;s'ff

    hellodjfos;s'ff

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    I feel the same browski, but the other method seems legit to me too. The only reason it puts me off is because the value for coefficient of friction is too large. I know the coefficient of friction can be more than 1 but not as high as 5!
     

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