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

1. For 7.a) I've realised I got the correct answer but crossed it out in my workings and did some other method.... Am I still likely to get the marks if the examiner can clearly see my workings?
2. I wrote -3 for the impulse insread of 3, would i get that wrong?
3. (Original post by niamhcostello23)
I wrote -3 for the impulse insread of 3, would i get that wrong?
4. (Original post by thatapanydude)
I think it will be
74 - 100 ums
68-90ums
62-80ums
55-70ums
48-60ums
I'm going for 73 for 100 - paper was the same as any M1 paper - literally just different numbers.
5. (Original post by NotoriousS)
For 7.a) I've realised I got the correct answer but crossed it out in my workings and did some other method.... Am I still likely to get the marks if the examiner can clearly see my workings?
if the examiner sees your workings you will get it right, it depends on how you crossed it out.
6. (Original post by Don Pedro K.)
Guys for the moments question, I basically got it all right up to the simultaneous equations, where after that I solved them incorrectly...Lol. Would I still get 5/7 you reckon? So like lose the final two A1 marks?
KloppOClock
7. (Original post by NotoriousS)
For 7.a) I've realised I got the correct answer but crossed it out in my workings and did some other method.... Am I still likely to get the marks if the examiner can clearly see my workings?
You did some other method and got the same answer?

You will not get any marks for anything appearing to be intentionally crossed out.
8. (Original post by Economistician)
Anyone mind giving their opinion on a quick question...

For 7b.) With the vector of velocity (3i - 22j) and acceleration of (3i + 9j) i think it was.

I done it right and got 13, but then i stupidly crossed it out and found the magnitude of the velocity (√493) and magnitude of the acceleration (3√10). And so after 3 seconds of acceleration, i got √493 + 9√10 = 50.7 ms-1.

Do you think i will get 0 marks? I'm thinking yes...
Also, does anyone know how many marks 7b was worth?

Any replies are appreciated
I think as long as you're crossed out answer is legible you will get marks. Our teacher says never cross out the answer-the examiner will mark what is right-but they may still mark the crossed out one (possibly)
9. Easiest m1 paper we have had. The wall question was a blessing
11. (Original post by KloppOClock)
It was -3 initially!? I think I know the a was negative but I just ignored it because when i used v^2=u^2 +2as it would just cancel. I didn't show a -3Ns at all would I be fine?

I just got 3Ns
12. Does anyone have an annotated mark scheme for the paper?
1. For the coefficient of friction question I think I may have got 0.72 rather than 0.73. That would only be one mark lost right?Also I drew my speed-time graph in the blank space between the lines but to the right of the question. The examiner should see that right...
13. (Original post by Don Pedro K.)
KloppOClock
well it was 7 marks so 2 A1 for answers 2M1 for each equation probably another M1 for solving simultaneously, not sure where the other 2 marks would go
14. Guys for the slope question, I got the value for R wrong so my coefficient of friction was wrong but everything else was right, how many marks out of 10 will i get?
15. (Original post by particlestudent)
It was -3 initially!? I think I know the a was negative but I just ignored it because when i used v^2=u^2 +2as it would just cancel. I didn't show a -3Ns at all would I be fine?

I just got 3Ns

well you got the right answer so I wouldnt worry
16. I completely guessed 7a) F=2.5i and forgot to write j component. Showed hardly any working. How many marks could i get?
17. For 8b, didn't the question ask for the force on the pulley due to the string? In which case the bearing is 225 degrees, as opposed to 45.
18. (Original post by KloppOClock)
well it was 7 marks so 2 A1 for answers 2M1 for each equation probably another M1 for solving simultaneously, not sure where the other 2 marks would go
I looked at May 2013 which had a pretty similar concept question to do with moments and simultaneous equations, and according to that, there were 2 M marks for taking momements about S and T for the two different scenarios, and then 2 DM1 marks for solving M and d. So I think I probably got 4/7.
19. I didn't get impulse as -3Ns initially? I just got it as 3Ns from the get go

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