# Edexcel M3 15th May Post- Exam (UK Spec)Watch

Announcements
6 days ago
#41
the highest it's ever been for an A* is 72 and the lowest it's ever been (for a non-R non IAL) was a 69? I think?
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6 days ago
#42
Haha I was quietly thinking the exact same as you
(Original post by supalape)
Ok so realistically lads we all bottled it somewhere in this exam, let’s just pray that it’s a common occurrence and the grade boundaries are alright
1
#43
(Original post by dalliant)
the highest it's ever been for an A* is 72 and the lowest it's ever been (for a non-R non IAL) was a 69? I think?
2014 was 68 for an A* and I think that paper was marginally easier or the same so here’s hoping
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6 days ago
#44
oh my god was the cone hollow.
(Original post by supalape)
yeah you’re right, I remember now I divided my left side (3/20) by 2/15 to get 9/8. Thank fk
0
6 days ago
#45
Looooooooooooooooooooooooool
(Original post by dalliant)
oh my god was the cone hollow.
0
6 days ago
#46
i made the ratios of the masses into 72 but was the cone solid? or hollow? because i see you have a h/3 and isnt that for a hollow cone? ? ? was that **** hollow are you serious.
(Original post by ilazakristudent)
Height of the cone is 100% 9h/8.

(3h/4)(M+(2M/5))=(M)(h/2)+(2M/5)(h+H/3), where H is the height of the cone.
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#47
(Original post by dalliant)
i made the ratios of the masses into 72 but was the cone solid? or hollow? because i see you have a h/3 and isnt that for a hollow cone? ? ? was that **** hollow are you serious.
It was hollow my guy sorry lol
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6 days ago
#48
Hollow bro . My maths teacher was right, the highest scorers make the least silly mistakes, it's literally down to these type of mistakes.
(Original post by dalliant)
i made the ratios of the masses into 72 but was the cone solid? or hollow? because i see you have a h/3 and isnt that for a hollow cone? ? ? was that **** hollow are you serious.
0
6 days ago
#49
This is for resits, right?

I have added this thread to the exam index under resits so people can easily find it.

Best of luck for your remaining exams.
0
6 days ago
#50
Okay so was the final part about the time for 0.4m of the SHM question worth 7?

I didn’t realise to divide by S at the end of it, and I also somehow used the amplitude as 0.5 rather than 0.8, but my SHM equation was correct, and my working out was all correct for the amplitude I used. How much do people think these errors will be penalised?
0
6 days ago
#51
ok listen up. the ticks are the correct answers and the crosses are what i put. if only one character is wrong in each one, and that's everything. how many marks are we looking at. i want to set myself on fire.
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6 days ago
#52
The first one you ticked is still wrong i think.The reason why you did 1cos10 is because of the way you thought everything was lined up, the same reason you did sine. So instead, it would just be 1-3tan10, because the distances 3tan10 aswell as 1, are both perpendicular to the plane face.
(Original post by dalliant)
ok listen up. the ticks are the correct answers and the crosses are what i put. if only one character is wrong in each one, and that's everything. how many marks are we looking at. i want to set myself on fire.
0
6 days ago
#53
after some more devastating news, i repose my question, how many marks my guy
(Original post by ilazakristudent)
The first one you ticked is still wrong i think.The reason why you did 1cos10 is because of the way you thought everything was lined up, the same reason you did sine. So instead, it would just be 1-3tan10, because the distances 3tan10 aswell as 1, are both perpendicular to the plane face.
0
#54
(Original post by dalliant)
ok listen up. the ticks are the correct answers and the crosses are what i put. if only one character is wrong in each one, and that's everything. how many marks are we looking at. i want to set myself on fire.
If you assumed the cone to be solid instead of hollow I reckon you’d lose 2-3 marks, definitely one for the final answer. But I’m certain you’d get 1 mark for the COM of the other thing (forgot what shape it was now lmao)
0
6 days ago
#55
None I guess, maybe 1 for the 6sin10
(Original post by dalliant)
after some more devastating news, i repose my question, how many marks my guy
0
6 days ago
#56
the whole thing was 4 marks tho. one for final answer and one for the error i reckon? but what about the other one. they were both worth 4 marks so do u reckon i'd get 2 for method for each?
(Original post by supalape)
If you assumed the cone to be solid instead of hollow I reckon you’d lose 2-3 marks, definitely one for the final answer. But I’m certain you’d get 1 mark for the COM of the other thing (forgot what shape it was now lmao)
0
6 days ago
#57
(Original post by ilazakristudent)
The first one you ticked is still wrong i think.The reason why you did 1cos10 is because of the way you thought everything was lined up, the same reason you did sine. So instead, it would just be 1-3tan10, because the distances 3tan10 aswell as 1, are both perpendicular to the plane face.
Diagram for what you're talking about.

Spoiler:
Show

0
6 days ago
#58
I'm so annoyed at the fact that I become so aware of the questions after the Exam and not in the Exam, whyyy, this always happens!!
(Original post by I hate maths)
Diagram for what you're talking about.

Spoiler:
Show

1
#59
(Original post by ilazakristudent)
I'm so annoyed at the fact that I become so aware of the questions after the Exam and not in the Exam, whyyy, this always happens!!
lol story of my life
0
6 days ago
#60
(Original post by ilazakristudent)
I'm so annoyed at the fact that I become so aware of the questions after the Exam and not in the Exam, whyyy, this always happens!!
I hate these further maths exams, you have to basically ace them to get a decent mark.
0
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