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M1 OCR (Not MEI) Exam - 9/06/2015 watch

1. (Original post by sykik)
I got Tension as 1.2 so i donno where i have messed up??
me and my friend got deceleration as 0.9
t= 1.2
fr=1.12
2. (Original post by cc262626)
thank you sorry didnt reply earlier this helped so much with todays question!! x
Really? Well if it didn't go great for me I'm glad that I helped, that's made me feel much better
3. (Original post by cc262626)
for the graph one i got
T= 7
5 hours
20 km
both travelled 50m

momentum i got u = 6

both travel in positive x direction with common speed 7

got 68ms-1 and 78ms-1 somewhere

1)i 28
ii) 6.384
iii) i got 5.98

last question

deceleration = 0.9
T= 1.02
Fr= 1.12
1ii and iii is wrong i think
4. (Original post by AlfieH)
Really? Well if it didn't go great for me I'm glad that I helped, that's made me feel much better
i'm sure you've done great, you get lots of method marks and most people found it hard so boundaries wont be too bad, don't stress!
5. (Original post by seizetoday)
1ii and iii is wrong i think
how come
6. Anyone remember the first question and the values?I cant tell how i got part 3 wrong.
7. For 1iii I got 0.6 exactly. Will I still get 3 marks? Or 2 do you reckon?

PS: 327th post!!!!
8. Went horrible for me, pretty much had a mini nervous breakdown because i just couldn't concentrate :') people found it quite difficult at my college. I think, the worst mark I could have got would be 46/72. I've worked out the average grade boundaries from the last 14 exams, if anyone is interested; 57.3/72 = 80 UMS (A), 49.4/72 = 70 UMS (B), 41.6/72 = 60 UMS (C).

So annoyed because every past paper I was doing I was getting 85+ UMS. Hoping for low grade boundaries but not getting my hopes up. Bad day, peace guys.
9. I love how the last question in this exam is really similar to the last question in the 2014 M1 paper that everyone complained was difficult so OCR decided to add a pulley this year, because that makes it so much easier...

Attachment 423233
10. (Original post by Minecraft27)
For 1iii I got 0.6 exactly. Will I still get 3 marks? Or 2 do you reckon?

PS: 327th post!!!!
well my friend got 5.99 and i got 5.98 so maybe they will allow a small range of answers, if not will only drop one mark i wouldnt worry
12. (Original post by cc262626)
well my friend got 5.99 and i got 5.98 so maybe they will allow a small range of answers, if not will only drop one mark i wouldnt worry
Where did you get 5.99 from? Wasn't it 0.599 because it was time taken to fall?
13. Highest grade boundaries were 62/75 = 80 UMS, 54/75 = 70 UMS, 46/75 = 60 UMS.
Lowest grade boundaries were 52/75 = 80 UMS, 44/75 = 70 UMS, 36/75 = 60 UMS.

Hopefully gives you guys an indication as to what you've got. Good luck guys!
14. 0.558 was Fmax, seeing as this is bigger than the pulling force, F would have matched the pulling force. (Friction varies with R up to the maximum value of friction). As friction would have matched the pulling force, there would be no overall force. I think!!!
15. (Original post by Breo)
Highest grade boundaries were 62/75 = 80 UMS, 54/75 = 70 UMS, 46/75 = 60 UMS.
Lowest grade boundaries were 52/75 = 80 UMS, 44/75 = 70 UMS, 36/75 = 60 UMS.

Hopefully gives you guys an indication as to what you've got. Good luck guys!
The paper was medium so I reckon maybe 56/72 for an A, 48 for a B.
16. (Original post by Minecraft27)
Where did you get 5.99 from? Wasn't it 0.599 because it was time taken to fall?
sorry dont know what im on about i meant 0.599 and 0.598
17. (Original post by Minecraft27)
The paper was medium so I reckon maybe 56/72 for an A, 48 for a B.
Medium of past papers were 57.5, 49.5 and 42 out of 75 so yeah
18. (Original post by cc262626)
me and my friend got deceleration as 0.9
t= 1.2
fr=1.12
Could u show your working out?
19. (Original post by benq)
anybody?
20. Question 4i

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