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

AlexeiLipov
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#401
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#401
(Original post by linaxq)
not sure.
when i intergrated between 3-0 i got 15m i knew that the wording was off but ugh
Yeah I got exactly 15 too! Wonder what I did wrong..
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Major-fury
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#402
(Original post by linaxq)
i want to know this too
don't you hate when they can't ask proper questions
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TheMoon
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#403
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#403
I put square root 109, would I only lose 1 mark or more?
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nitromeguy
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#404
(Original post by linaxq)
73.3 or 73.6 please do the calc again it was ->>>>>3ms and 10 down so arctan 10/3
Yeah I know it was arctan 10/3 - which is 73.3, I just wrote it wrong when I posted
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OldMathsAccount
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#405
(Original post by TheMoon)
I put square root 109, would I only lose 1 mark or more?
Should be -1, nothing to lose sleep over.
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ombtom
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Poll for the UK exam: http://www.thestudentroom.co.uk/show....php?t=4171568
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Khoinet
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#407
(Original post by AlexeiLipov)
Yeah I got exactly 15 too! Wonder what I did wrong..
You have to minus the displacement when t=2 as the question asked distance travelled between 2-3 (in the third second).
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1144297
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#408
(Original post by Sophie Wilczek)
How many marks do you think I'd get for putting in the wrong limits? 3 and 4 (it was 5 marks)
I would think that you would probably lose one or two A1 marks for it, assuming your method was correct (I would think it might be M1A1 for getting the correct integral, M1 for subbing in values and solving).
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Khoinet
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#409
(Original post by cjlh)
Should be -1, nothing to lose sleep over.
Like i said dude some ms allow student to leave answer as root form. You may be right so
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OldMathsAccount
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#410
(Original post by ThatPerson2)
I would think that you would probably lose one or two A1 marks for it, assuming your method was correct (I would think it might be M1A1 for getting the correct integral, M1 for subbing in values and solving).
It was out of 6 I think so I'd say 2 or 3 marks lost.
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Jakester11
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(Original post by cjlh)
suvat

horizontal: s=lambda
vertixcal: s=-lamda

Fill in the other knowns, find t in terms of lambda using the horizontal (t=1/3 lambda) and then solve substituting this into s=ut+1/2 at^2 with the vertical values
Hmmm I did this, must have made a slip somewhere. Thank you
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TKA1998
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#412
For question 7 I made an arithmetic error and subsequently got the wrong value for the speed of B meaning I used the wrong value in part b and c, how many marks would i likely loose for this.
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edothero
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#413
You're welcome to contribute, as I can't remember all of it.

QUESTION 1:
Part A) 8 marks
Part B) 5 marks
Total (13)
---------------------
QUESTION 2:
Part A)
Part B)
---------------------
QUESTION 3:
Part A) 6 marks
Total (6)
---------------------
QUESTION 4:
Part A) 5 marks
Part B) 4 marks
Total (9)
---------------------
QUESTION 5:
---------------------
QUESTION 6:
Part A) 7 marks
Part B) 6 marks
Total (13)
---------------------
QUESTION 7:
Part A) 7 marks
Part B) 3 marks
Part C) 2 marks
Total (12)
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embem10
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#414
(Original post by Lilylollydove7)
Did anyone else get 1.22 as their distance for the centre of mass?
I can't remember exactly what I put but yeah that rings a bell!
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OldMathsAccount
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#415
(Original post by Khoinet)
Like i said dude some ms allow student to leave answer as root form. You may be right so
Very true, could be either depending on how anal they are. Probably would be fine though actually

(Original post by Jakester11)
Hmmm I did this, must have made a slip somewhere. Thank you
No problem dude
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linaxq
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#416
http://www.strawpoll.me/10508393/r

Please be honest so we get a clear indication of grade boundaries.
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zandneger
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#417
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#417
(Original post by TheMoon)
I put square root 109, would I only lose 1 mark or more?
Thats the correct answer though?
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Major-fury
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#418
(Original post by TheRandomGenius)
The question was 6 mars so I 'd say you got 3 and lost 3.
5 marks* so would i get 2 marks?
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TheRandomGenius
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#419
(Original post by Major-fury)
5 marks* so would i get 2 marks?
Oh. I'm honestly not sure but its definitely either 2 or 3.
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ombtom
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(Original post by edothero)
You're welcome to contribute, as I can't remember all of it.

QUESTION 1:
Part A) 8 marks
Part B) 5 marks
Total (13)
---------------------
QUESTION 2:
Part A)
Part B) 4 marks
---------------------
QUESTION 3:
Part A) 6 marks
Total (6)
---------------------
QUESTION 4:
Part A) 5 marks
Part B) 4 marks
Total (9)
---------------------
QUESTION 5:
---------------------
QUESTION 6:
Part A) 7 marks
Part B) 6 marks
Total (13)
---------------------
QUESTION 7:
Part A) 7 marks
Part B) 3 marks
Part C) 2 marks
Total (12)
Someone already posted this:

1a) 8
b) 5
2a) 6
b) 4
3) 6
4a) 5
b) 4
5a) 8
b) 4
6a) 6
b) 7
7a) 7
b) 3
c) 2
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