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# Official M1 OCR 2016 Thread

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1. Worst exam I've ever sat in my life 😢
2. Is it just me or was this the worst paper ever 😁😭😁
3. 1
i) 43 10
ii)6.8
2
i)3
ii)7.33
3
i)82.8
ii)48.6
4
i)6
ii)3.75
iii)5.42
5
i)12
ii)16.3
iii)
6
i)1.81
ii)2.35
iii)1.83
7
i)10
ii)25
iii)6.76
4. (Original post by Harrylhchan)
1
i) 43 10
ii)6.8
2
i)3
ii)7.33
3
i)82.8
ii)48.6
4
i)6
ii)3.75
iii)5.42
5
i)12
ii)16.3
iii)
6
i)1.81
ii)2.35
iii)1.83
7
i)10
ii)25
iii)6.76
Sorry to say pal but you've failed my g
5. Fairly sure most of these are right. At least, they're almost all the same as what I got (the answers harryhlchan put)
6. Wasn't the angle for 2ii the angle to the vertical making it 90-your answer.
7. Yes it was.
8. (Original post by olikitchin)
Wasn't the angle for 2ii the angle to the vertical making it 90-your answer.
Yeah) You are correct)
Does anyone remember what the question 5 was about?
9. Mechanics is such a joke 😫
10. For ques 6.i. Isnt the tension before releasing 0.2*g = 1.96 N
11. Thats what I thought, then I think i got 1.69 for the Tension after.
12. (Original post by banksy0312)
Thats what I thought, then I think i got 1.69 for the Tension after.
I believe I got 1.69 as well and T=0.2gsin(30) for before release
13. (Original post by banksy0312)
Thats what I thought, then I think i got 1.69 for the Tension after.
I got 1.8095 for the tension afterwards but 0.2g for before
14. (Original post by mccleavland)
I got 1.8095 for the tension afterwards but 0.2g for before
Same, as you have to resolve tension from about Q and about P.
15. Hi, I made a mistake on the 7 marker when getting P. I used the 25 instead of squaring it as I thought magnitude would be square root of 25. I got P=2. How many marks would I get?
16. (Original post by ixguard)
Same, as you have to resolve tension from about Q and about P.
Didn't you have to consider the fact that it was inclined? Meaning that g was acting at an angle?
18. Did anyone get (I think 6iii) about the contact force when P was moving? I had already worked out a contact force from the previous parts of the Q based only on the weight of the particle, but feel like there must have been more to it than that. Got like 1.69 or something
19. (Original post by clarafitzgerald)
Did anyone get (I think 6iii) about the contact force when P was moving? I had already worked out a contact force from the previous parts of the Q based only on the weight of the particle, but feel like there must have been more to it than that. Got like 1.69 or something
I'm pretty sure I got 1.69 too and so did other people! The contact force is the resultant of R and F (I think).
20. (Original post by clarafitzgerald)
Did anyone get (I think 6iii) about the contact force when P was moving? I had already worked out a contact force from the previous parts of the Q based only on the weight of the particle, but feel like there must have been more to it than that. Got like 1.69 or something
I got that too but can't be right can it? That would have been way too easy for 3 marks

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