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# OCR (non mei) M2 Wednesday 18th May 2016

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• View Poll Results: Raw marks for 90 UMS
60
63.75%
61
6.25%
62
16.25%
63
6.25%
64
3.75%
65
1.25%
66
5.00%

1. I think I remember it being 32x4/5 for p and 20x7/25 for q.
2. yeah im quite ****ed mate
3. (Original post by swagmister)
Sorry this isn't a great diagramAttachment 533445533447Attachment 533445
unlucky mate, its suppose to be a 22 in the top right
4. hopefully the grade boundaries will be 72 for an A this year, i bossed that paper
(Original post by ethanstoddart)
Low grade boundaries is what I'm predecting this year...
5. You've completey ****ed q3 mate
(Original post by xsanda)
Xsanda’s solutions:

1) Car on a plane:
i) v = 22.5 m/s
ii) P = 35.9 kW

2) Particle up a plane:
i) Wd = 8.43 J
ii) v = 10.8 m/s

3 Arch shape:
i) show that: 13a/3π
ii) T = 8.82 N
iii) θ = 10.9º left of upwards vertical

4 Particle around a cone:
i) show that m/6 (2 sqrt3 g - 3 a ω²)
ii) T = 39.6N, V =1.19 m/s

i) show that 5W/24 (1+6x/a)
ii) max x = 1.7a
iii) tan = 39/14

6 collisions horizontally:
i) a: 5.5 m/s, b: 8 m/s, both in opposite direction to their original motion
ii) e=3/4

7 projectiles:
i) 18.8m high, 61.1 m AB
ii) 87.3 Ns
iii) 11.9 m
6. (Original post by GCSE2016)
You've completey ****ed q3 mate
No, those solutions are completely correct.
7. (Original post by GCSE2016)
hopefully the grade boundaries will be 72 for an A this year, i bossed that paper
lol you haven't even started your A-levels mate
8. (Original post by marioman)
That was dreadful. Estimate I've got about 51-52 raw marks depending on method marks.
Well, if there's one thing I'm really good at it's estimating my marks. Got 80 UMS on the dot for this, 51/72! Hope everyone else got what they wanted.
9. (Original post by marioman)
Well, if there's one thing I'm really good at it's estimating my marks. Got 80 UMS on the dot for this, 51/72! Hope everyone else got what they wanted.
mate i am so ****in' lucky

FP2: 100
FP3: 72
S2: 98

Just averages out to 90...also I don't understand how I did so badly in FP3...
10. (Original post by marioman)
Well, if there's one thing I'm really good at it's estimating my marks. Got 80 UMS on the dot for this, 51/72! Hope everyone else got what they wanted.
Well played!

M2: 100
M3: 84
M4: 90

It's was 58 for A* so only 65 for 100! Loving the mechanics boundaries this year!
11. (Original post by jacobe)
mate i am so ****in' lucky

FP2: 100
FP3: 72
S2: 98

Just averages out to 90...also I don't understand how I did so badly in FP3...
I also got only 84 in FP3 despite expecting 57+ raw marks (should be 92+ UMS), and my friend got 50 UMS which was quite a shock for him. I can only assume that the mark scheme for Question 8 (groups) was extremely harsh.
12. (Original post by jacobe)
mate i am so ****in' lucky

FP2: 100
FP3: 72
S2: 98

Just averages out to 90...also I don't understand how I did so badly in FP3...
S2: 100
D2: 86
FP2: 83

= 1 ums off 90

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