Edexcel AS/A2 Mathematics M2 - 17th June 2016 - Official Thread Watch

Om Dave
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#721
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#721
(Original post by nitromeguy)
Answers to edexcel m2 uk paper
1 a) 4ms-2 b) 11/3
2) P =4900 R = 784 d= 53.1
3) c= 10/3
4) x =0.83m, angle 113.6
5) a) friction = (5gdsinthetacostheta)/4
Reaction= (5g/4)(4-dcos^2theta)
b) d = 2.56m
6)a) lambda = 30/7 b) speed 10.4 angle 73.6
7) a) Va = 3u/20 Vb = 21u/10 b) e=1/14 c) no since moving at same speed in same direction
In question 6bi, is the question measured clockwise? As in would 73.6 from i be the same as 163.6 from j
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CaiusMartius
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#722
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#722
So frustrating. Got all of it right except for the first question which I completely ****ed up. Hopefully I'll get get some method marks since I had the right method but slipped up at a point. If I get 90 I'll be over the moon lol
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CaiusMartius
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#723
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#723
People generally found it very tricky so hopefully boundaries will be low (centre of mass question was peaaaaaaaak)
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paddy10663
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#724
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#724
(Original post by target21859)
I hate having to wait so long for results day. It's the worst. Tbh I did well in fp2 and I find fp3 easier than fp2 so I should be fine. I've got S2 as back up any way but I need to start revising for that
Egh, I know, I just try to put results day out of my mind until it actually arrives. If you’ve done well in FP2 then you’ll have got some pretty high UMS there, it was a tough paper. I’m generally OK with FP3 but I really don’t like the loci problems they set in the conics questions.
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pixelwulf
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#725
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#725
What grade would mid 40s be? (44-46ish) Would that be a D?
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Craig1998
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#726
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#726
You're all welcome, I'm helping the grade boundaries get lower .

Also, for question 6, I couldn't figure out a value for lambda so I just used lambda = 3 then went onto part b using this value. How many marks would I gain from part b for using this.
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CD1998
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#727
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#727
(Original post by Craig1998)
You're all welcome, I'm helping the grade boundaries get lower .

Also, for question 6, I couldn't figure out a value for lambda so I just used lambda = 3 then went onto part b using this value. How many marks would I gain from part b for using this.
I would say if you did the right method you might not lose anything
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k.russell
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#728
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#728
How many marks do you guys reckon I'll lose for adding the mass of the 2 shapes together then dividing by the total mass of the shapes (rather than subtracting the mass of the triangle from the mass of the sector then dividing). It means I got the distance from AD wrong and ofc the angle as a follow on from that. In terms of method, attempted to find the angle using tan-1 and that the angle in the triangle was 45 - my table of masses was also correct. Is about -4 marks fair? (out of 9)
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kkboyk
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#729
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#729
(Original post by pixelwulf)
What grade would mid 40s be? (44-46ish) Would that be a D?
Yup. C was 50 last yr
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Ae1in
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#730
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#730
Hmmmmmmhmmm, pretty relieved, because I was so stressed going in to the test, however I got 70.0 for Q)6 so it looks like a made a ittle error somewhere, but hopefully I won't loose too many marks for that... I know I've also lost 2 marks at the beginning for a silly error.
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LucyDey
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#731
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#731
(Original post by Craig1998)
You're all welcome, I'm helping the grade boundaries get lower .

Also, for question 6, I couldn't figure out a value for lambda so I just used lambda = 3 then went onto part b using this value. How many marks would I gain from part b for using this.
I did the exact same thing loool, I'm expecting no marks from that question to be fair
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mani119
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#732
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#732
Can someone tell me how to do 2b?
Just to make sure because I think I got 531
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Ae1in
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#733
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#733
(Original post by mani119)
Can someone tell me how to do 2b?
Just to make sure because I think I got 531
1/2m12.5^2= mgdsin+ dR
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mani119
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#734
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#734
(Original post by Mathlete2198)
Hi guys,

So I'm supposed to be revising for C3, but I remembered all the questions from 1-6. I'm really sad, sorry. If anyone remembers Q7 holla at me.

I hope that these are right, but remember, I'm a student just like you guys!

If you have any questions let me know.
Thanks a lot, hopefully more people can see this
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solid222
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#735
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#735
Q5 said write in terms d g theta I didn't do moments therefore never got d But my R and P was still correct how many marks lost??
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solid222
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#736
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#736
nitromeguy Q5 said write in terms d g theta I didn't do moments therefore never got d But my R and P was still correct how many marks lost??
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Ae1in
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#737
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#737
Damn damn damn damn, I got the i and j vectors the wrong way around, I said 3 was it's inital vertical speed. If all my working is correct how many marks could I lose ? 3 for answer marks?
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TelevisedTadpole
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#738
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#738
Predictions for full ums? what mark out of 75 do you lot think it'll be?
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Craig1998
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#739
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#739
(Original post by CD1998)
I would say if you did the right method you might not lose anything
I'll lose all the accuracy marks, I know that (I was just thinking I need to get some more method marks when I rushed to get that part done).

Tbh I did it last year in M1 with the lift question, couldn't do part a but I had a method for part b (they were both only 4 marks I think), so I could get 1-2 extra marks in part b using a random answer for part a.
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Hineshtailor
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#740
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#740
For 6bi I said that the angle for direction is 73 Degrees below the HORZONTAl is this correct?
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