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    (Original post by .A.)
    Heh if you think this was harder than Jan 08 then we are all fine. Because grade boundary for that was like 55 i think.

    Pressure? thats what you have to tell us.

    .A.
    There was nothing really tricky in the Jan 08 paper though. Fine the energy question required a bit of diagram manipulation but thats about it.

    Hopefully the boundaries are low. :p:
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    (Original post by .A.)
    Heh I am really worried about SHM. Did you guys what did you get for the distance away from B.

    .A.
    it was 0.016m away from B is that what you got? because you had to take what you found out away from 0.12m
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    (Original post by kcfch)
    it was 0.016m away from B is that what you got?
    I got that.

    As for grade boundaries, I thought it was much harder than January 2007 which was 56/75 for an A.
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    Can someone remind me what W was in shm so that I do the calculation now.

    a=0.12. t=2

    .A.
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    (Original post by .A.)
    Can someone remind me what W was in shm so that I do the calculation now.

    a=0.12. t=2

    .A.
    I think it was: \displaystyle\omega = \frac{2\pi}{3}
    Which would have meant that T = 3 seconds, but I'm not sure.
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    Alright. 0.0161 (3.s.f) was the right answer.

    .A.
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    (Original post by alex_hk90)
    I think it was: \displaystyle\omega = \frac{2\pi}{3}
    Which would have meant that T = 3 seconds, but I'm not sure.
    I got that as well
    Finally something I recognise!
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    Does anyone remeber the answer for question 1.
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    (Original post by .A.)
    Does anyone remeber the answer for question 1.
    the first part was a show that, which i got, but i tihnk my method was completely wrong. the second part was about ...oh yeah the velocity as it reaches the tube end right? yeah i did
    gain in KE + gain in GPE = loss in EPE
    then lots of number crunching i cant remember my final answer though
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    I knew exactly what to do on q3, but I panicked and didn't write it down.
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    Urf, I found this exam really hard. Granted, I tried this with nil revision since I had a crazy-hard exam before it, but it was still really difficult.

    Didn't manage to do the last question, but I did reduce it to the integral I think (though think I forgot to root the 6). Doing FP2 so I should have been able to do it more.

    It's also very annoying that in the last minute I realised I hadn't done a 6 mark question. :eek:

    (Original post by .A.)
    Alright. 0.0161 (3.s.f) was the right answer.

    .A.
    Hehe don't remember this, is this for the distance from B in that SHM question?
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    (Original post by alex_hk90)
    That sounds familiar; if I remember correctly:
    \displaystyle \omega = \sqrt{\frac{2a}{5g}}
    But I can't remember the working.

    I'm SURE the question was find omega in terms of g and h....

    Anyway, I got \omega = \sqrt{\frac{2g}{h}} ....I think.

    That was the biggest ***** of a paper that I have ever had the displeasure in taking. I hope the grade boundaries are really low.
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    (Original post by AlphaWulf)
    Hehe don't remember this, is this for the distance from B in that SHM question?
    Yes it was, the last part of the SHM question.
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    (Original post by IChem)
    I'm SURE the question was find omega in terms of g and h....

    Anyway, I got \omega = \sqrt{\frac{2g}{h}} ....I think.

    That was the biggest ***** of a paper that I have ever had the displeasure in taking. I hope the grade boundaries are really low.
    ohyeah maybe it was g, in that case i got rt(2g/5h)
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    can somebody remind me of question 3 ?

    Btw i recall an answer smthing like 4/15 rt15
    did anyone else get smthing like that?
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    the paper was really hard...much harder than the other papers BY FAR ... i got like 90% in Jan08..but this paper...go knows....
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    *god
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    (Original post by IChem)
    I'm SURE the question was find omega in terms of g and h....
    It might have been; I can't remember it that well, only that there was a 2/5 involved.

    (Original post by IChem)
    That was the biggest ***** of a paper that I have ever had the displeasure in taking. I hope the grade boundaries are really low.
    I agree, I think that 54/75 would not be unreasonable for an A.
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    I recall an answer of T=3mg
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    (Original post by Sepulamb)
    I recall an answer of T=3mg
    hmmm i remember a T=3/2 mg dont remember a 3mg though...do you remember which question?
 
 
 
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