# Edexcel AS/A2 Mathematics M2 - 17th June 2016 - Official ThreadWatch

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2 years ago
#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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2 years ago
#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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2 years ago
#723
People generally found it very tricky so hopefully boundaries will be low (centre of mass question was peaaaaaaaak)
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2 years ago
#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 youâ€™ve done well in FP2 then youâ€™ll have got some pretty high UMS there, it was a tough paper. Iâ€™m generally OK with FP3 but I really donâ€™t like the loci problems they set in the conics questions.
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2 years ago
#725
What grade would mid 40s be? (44-46ish) Would that be a D?
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2 years ago
#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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2 years ago
#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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2 years ago
#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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2 years ago
#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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2 years ago
#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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2 years ago
#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
0
2 years ago
#732
Can someone tell me how to do 2b?
Just to make sure because I think I got 531
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2 years ago
#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
1
2 years ago
#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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2 years ago
#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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2 years ago
#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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2 years ago
#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?
0
2 years ago
#738
Predictions for full ums? what mark out of 75 do you lot think it'll be?
0
2 years ago
#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.
0
2 years ago
#740
For 6bi I said that the angle for direction is 73 Degrees below the HORZONTAl is this correct?
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