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Edexcel AS/A2 Mathematics M1 - 8th June 2016 - Official Thread watch

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    What was the coefficient of friction, I got 0.873
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    (Original post by jsantos09)
    i got 1.2m and 42kg...
    same
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    can anyone explain why the moments question gave 1.2 and 42 rather than 1.6 and 66? and how many marks do you reckon I'll lose for putting 1.6 and 66?
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    [QUOTE=Questioner1234;65554835]I would have thought that saying 135 or 45 from horizontal are both wrong if there is no clockwise/anti-clockwise mentioned. I wrote 45 degrees from horizontal-south west then added bearing of 225
    Posted from TSR Mobile thats fine then youll get the marks
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    (Original post by HasanRaza1)
    grade boundary predictions?
    Probably like 55-60 for an A depends, how did your class find it?
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    What did people get for the moments question?
    I got d=3.2 and M = 162
    (BTW I'm not saying its right)
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    (Original post by CaiusMartius)
    Taken from an almost identical question from June 2013.

    "Direction clearly marked on a diagram, with an arrow, and 45o (oe)marked"
    Oh OK with a diagram That would be fine but I'm saying if you just wrote 45 from horizontal or just wrote 135 from horizontal with no diagram in close proximity then they have no idea whether it's north west/south west/north east/south east. But yes that's great then I just hope I remembered to label my diagram...


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    (Original post by xz6)
    Anyone else get bearing 225deg for direction??
    Yes, resultant force of 16.6 N on a bearing of 225 degrees is what I got
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    (Original post by student bang)
    What was the coefficient of friction, I got 0.873
    Got 0.727


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    And guys I have a very important question this is what I will either get me a nearly full UMS or complete fail. I did the graph IN PENCIL and I forgot I was using pencil and just carried on with the paper! Realising it on the last question, this won't lose me marks right??? I even wrote on the pages I used pencil "Sorry I forgot I was using pencil" !! anyone please??
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    (Original post by xz11)
    I think you will find its the same as 135deg from the horizontal not 45
    its 135 from the vertical
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    (Original post by Reda2)
    Guys for the direction of the force on the pulley, it's not in terms of bearings, look at this past paper, you had to draw on the diagram.

    Question: http://www.mediafire.com/convkey/846...xefvfrrezg.jpg
    Mark scheme: http://www.mediafire.com/convkey/aa8...hmc664c7zg.jpg
    If that's the case I think i got the marks.
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    (Original post by student bang)
    What was the coefficient of friction, I got 0.873
    I got 0.727 I think
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    (Original post by Formless)
    ^^^ This is 100% correct, Any idea the marks for the impulse questions
    Doesn't R have to be 15.5N to 3sf or 16N to 2sf, not 15.45?
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    (Original post by student bang)
    What was the coefficient of friction, I got 0.873
    im pretty sure it was 0.727
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    (Original post by Mizzeeboy)
    What did people get for the moments question?
    I got d=3.2 and M = 162
    (BTW I'm not saying its right)
    d=1.2 M = 48
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    (Original post by Mizzeeboy)
    I got 0.727 I think
    Yeah I think I remember getting 0.73 to 2 dp.
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    Just a shout, for 2b, it was definitely 14.7? Quite confusing phrasing.

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    What was the coefficient of friction, I got 0.873??
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    Fairly easy test this time around. Here are my answers which should be correct:

    1. 104 degrees, 640i+640j
    2. T=20.6N , R=15.5N
    3. Impulse = 3Ns
    4. Graph with one point of intersection, T = 8.75s
    5. Moments qn: d=1.2m M=42kg
    6. Coefficient of friction = 0.727
    7. 2.5i+2.5j, 13 ms-1
    8. T=11.8N, F=16.6N bearing 225 degrees
 
 
 
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