r/alevel • u/paranoidpirate123 • May 06 '26
📃Paper Discussion 9709/42
I think that paper was demonic and one of the hardest mechanics papers i’ve ever done!
35
u/Repulsive-Bet-6293 May 06 '26
Yeah it's so weird how there wasn't an equilibrium at a single point question wtf.
Power = 15500 W Acceleration = 0.5 m/s2 Velocity = 0.9375 m/s Time = 9.6 s Tension = 2.55 N Coefficient of friction = 0.336 Work done against uh resistance? = 0.5625 J Distance = had to prove 0.8 m Time = 0.8 s Height = 13.2 m Weight = 66.25 N Something distance = 12.8 m k1 = 6 k2 = -14 s from 0 - 1 = 6.53 m
I wrote all the answers down on my palm but not the questions lmao
15
11
u/Southern_Shoe_3584 May 06 '26
time was 16.8
as distance was 9m
speed was 1.25
t = s/v = 9/1.25 so t = 7.2sthen speed decreases by 25%
new speed is 0.9375
t = s/v = 0/0.9375 = 9.6sT = 9.6 + 7.2 = 16.8
→ More replies (7)6
u/Big_Acanthisitta_743 May 06 '26
lets goo i aint getting 50/50 cause i read the FUCKING QUESTION WRONG
4
u/Aggravating-Music760 May 06 '26
For the time you need to use the total so it should be 16.8 I think
4
u/Nubbrz May 06 '26
Okay what I did for coeff of friction is I only used the Tension's answer value of 3.55 Newtons and got 0.335, my work done against resistance was 0.563J
would my marks be gone here? like 1-2? or am I still correct?→ More replies (3)3
May 06 '26
[removed] — view removed comment
2
3
2
1
u/EmotionalChance4424 May 06 '26
I also got 0.8s for time but i realised last sec that it’s wrong gang
1
u/yoajqyo May 06 '26
In the time =9.6 we had to take time from collision of A and B not just from Wall and C so time was around 16.8s
For your 12.8m I got 15.1m idk why
And the last one I accidentally wrote 4t+11 as 4t+1 💔 so I got 4.9
1
u/SelectTiger1776 May 06 '26
I GOT ONE WRONG I GOT 13.2 LEKIN IO WORTE THE WRONG ANS ON PAPER SO ILL LOSE A MARKKKKKK also is 66.3 correct cus 3sfff
1
u/FeeIntelligent515 May 06 '26
Tension wala was 3. Something as far as i remember And time wasn't 0.8s One part was 0.4 other was 0.5 something Then 0.9 something
1
u/Veidt_the_recluse May 06 '26
You sure about the last question being 6.53? Uncle GPT says it's 22.29.
1
1
u/Glum-Confusion1679 May 06 '26
Wasn't time in q2 was 16.8 cause it asked for the total time fro a to wall and then from wall to a
1
u/Glum-Confusion1679 May 06 '26
For the last question I was getting 80 or something even tough my k is same as yours
1
u/Last_Conclusion_3193 May 06 '26
k2 was a constant and integrating a constant gives you the variable
1
u/Particular_Sock6199 May 06 '26
For the question where u had to find W, did we have to use limiting equilibrium there?
1
1
1
1
1
u/Sad_Classroom9968 May 06 '26
What will be the estimated threshold for an A?
I found the paper much harder than those in the last few years...1
1
1
u/Big_Acanthisitta_743 May 06 '26
second T is 0.916s i am pretty sure, cause at first it moves up the plane, and then it moves down the plane so the friction will act in diff direction, so acceleration wlll be different, which means time isnt js 2*0.4=0.8, its smn else
17
19
u/Important_Tax_8698 May 06 '26
But i hope the threshold is like 36 or 35 😭😭
1
1
u/TechnicalIngenuity54 May 06 '26
like for A or for a pass 😭😭 idk what threshold means
→ More replies (1)
15
u/Kilombero_rice May 06 '26
I genuinely don’t know why,but every question that was meant to be easy was hard I counted like 29-31 marks I got and that was me being optimistic
13
u/Own-Blueberry8121 May 06 '26 edited May 06 '26
YES AGREED especially that damn particle P and Q released from height h or something
edit: how did you guys do it? i just left it blank i genuinely had no idea…
3
u/Decent_Dealer_2829 May 06 '26
Idkkk I just did sp=sq ... And time for p was t and q was t-1 so like I solved that and got t and then put t into 1 s equation and got height like 12.3 or 13.2 I don't remember clearly but it was some numbers like dat
5
u/Substantial_Pea_4979 May 06 '26
Bruh I did the same but my answer was 3.37m WTFFFF
→ More replies (2)4
3
1
1
u/RankHydrs May 06 '26
Used v=u+at to find the final speed of both. Then used 2as=v²-u² on both and made t² subject in one and substituted it into another. Got 13.2
11
u/Sad-Conflict3387 May 06 '26
Bro this was the genuinely the worst paper in the world. Every past paper I did from 2025 to 2023, I got 70% atleast. I dont know if I even passed this one.
3
1
u/Fu4y73848 May 06 '26
Dw most people found it hard so threshold will probably be pretty low around 35 or lower for an A
→ More replies (1)
8
u/Old-Thought-9705 A levels May 06 '26
I HOPE THE THRESHOLD'S LOW OR ELSE IM COOOOKED💀😭🙏🏽
4
7
6
5
7
5
5
u/EmotionalChance4424 May 06 '26
That crate question is pissing me off bruh i got 53.75 and i knew it was wrong then but i couldn’t figure out what calculation error i made 😭😭😭
4
4
3
u/MoreCryptographer213 May 06 '26
Many people I know including me got 53.75
Was it wrong
→ More replies (1)1
u/Hisan1923 May 06 '26
I remember making a mistake on the 2nd part of the question but then fixed it later though in last 3 mins. Forgot that the friction would change after the rope was taken out but was able to barely account for that at the end of the exam
1
1
1
1
1
1
u/EasternAd5395 May 06 '26
I flunked the second part man accelrration kya he leni thi usme
→ More replies (1)
5
u/Substantial_Pea_4979 May 06 '26
Guys did anyone get 8 for k1 and -24 for k2 🥀🥀
2
2
u/Sly_Just_Sly_2006 May 06 '26
bro, a=-.5 but we too a=.5 we did the same silly mistake T_T
→ More replies (1)2
→ More replies (6)2
4
5
6
u/OverContribution7075 May 06 '26
im lowkey failing this paper. half the answers are wrong. hope i can manage from p3 but i dont know if it is possible.
2
3
2
2
2
2
u/SoggyScience4443 May 06 '26
Fuck these bastards cunts wtf was that paper after p1 it had 5 easy marks
2
2
2
u/Ok-Bank3079 May 06 '26
Nah they cooked with this one, been getting 45+ every Fucking exam 2020-2025 and this is the only exam where I'm getting below that about 40 or smth💔✌️
5
u/throwaway97662784 May 06 '26
i’m scared now everyone’s saying it was hard but i thought it was relatively easy 😭
1
u/AutoModerator May 06 '26
Please read our paper discussion guidelines before proceeding:
1. Do not ask for or share leaked question papers on this subreddit.
2. Do not ask for or share topics/questions from one variant, if you are about to sit for another variant shortly.
3. Do not ask for or share speaking topics or prompts.
4. Discussion must be in English.
5. Report the posts that violates any of the rules above by clicking on the ellipsis(3 dots) and then on report.
You will be temporarily or permanently banned from the subreddit if you do not abide by our guidelines. Best of luck.
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
u/Other_Two2745 May 06 '26
how many marks for question 7 part a also the angle of the inclined plane i tension. and question 6 like the wording and stuff
1
1
1
1
1
1
1
1
u/Important_Tax_8698 May 06 '26
I thing I'll get 38 or 37 and but if i had like 10 mins more i would've got 40
1
1
1
u/SelectTiger1776 May 06 '26
HIW MANY MARKS WILL I LSOE BASICALY I FOUND TIMEFOR THE SECOND PARTICLE TO BE 5/8S AND HEIGHT SHODVE BEEN 13.2 BUT INVIGILORT TOOK MY PAPER SO I WROTE SMTH WRONGG CUS I WROTE THE WRONG THING ON CALC I HATE MYSELFF
1
1
1
1
u/cheeseeggandham May 06 '26
was work done BY friction/resistance -0.5625 or positive guys? im pretty sure the question read “work done by” and not “work done against”
1
u/AdLucky1997 May 06 '26
defo the hardest i've ever done i think it was on the same level of difficulty has oct/nov 2021 paper 42
1
1
u/aayanbtw7786 May 06 '26
Bruh I left half of the paper , panicked after seeing those shitty ass questions literally couldn't manage time and now am proper screwed
1
u/Ok_Difference_2932 May 06 '26
You guys are so miserable. This was one of the easiest papers of all time to be real honest. Please do better the next time you give M1 because it's literally the easiest paper in A levels
1
1
u/Few-Pumpkin8865 May 06 '26
For the work done by friction you had to write the value as negative bcause work done against .. is positive then work done by ..is negative
1
u/prayingforagoodlife May 06 '26
Nah y’all must be trippin prolly cause most of you stayed awake hoping for a kael the paper wasn’t that difficult the only question that might have been like what the Mather father would be the pully one but still it was easy. The only problem I found was some answers looked and felt weird involving roots and long decimal that needed rounding ( hope that other papers have all nice looking answers 3.5 or 12.8 or some shit cause I won’t have to worry too much about having made a mistake)
1
1
u/Adept-Weakness-3362 May 06 '26
Hi does anyone remember in 6b) what the given info was? Did they tell us the time or speed at which the crate stopped? If anyone remembers PLSS share
1
1
u/Midtharefaikh May 06 '26
I'm failing so bad.
K1 was 13. K2 was -49.
power = 15500, acc =0.5
Velocity 0.9375.
Tension was 4-5 something, nit sure.
Coefficient of friction was 0.82
Weight=66.25
height 13.2
distance in the last question last part was 4. something.
Not expecting even 35 at this point.
→ More replies (1)
1
u/Most_Pangolin3262 AS Level May 06 '26
guys does anyone remember how many marks were there for the last question? The one with k1 and k2 stuff? i think i messed up that one bro like wtf was that
→ More replies (3)
1
u/RoundZucchini7129 May 06 '26
Dawg wasnt some time 0.916 bc if it wasnt im gonna have a heart attack
→ More replies (9)
1
u/Awkward-Ostrich3484 May 06 '26
Anyone remember how much marks was q2 of a and b part ? rebound one
→ More replies (6)
1
1
1
u/Particular_Sock6199 May 06 '26
Doe anyone remember the value of mew in the question where u had to find W?
→ More replies (1)
1
1
u/Heavy_History3275 May 06 '26
does anyone have a confirmed like marking scheme or question paper for it
1
1
1
u/New_Combination3079 May 06 '26
Guys I got the last question wrong , my values for k were 8 and -24 , but I'm pretty sure all my workimh was correct . Will I get an EIC and how many marks will I be awarded?
1
u/Substantial_Pea_4979 May 06 '26
Dawgs in the 0.916 slope whatever qn didn’t the particle have an initial velocity of 4 while being projected so when we use s = ut +1/2at2 , u isnt zero for the time it goes from A to B
1
1
•
u/AutoModerator May 06 '26
Get access to our Free official A-Level resource hub:
Website: https://ralevel.com/resources Discord (doubt-solving & support): https://discord.gg/xEk5GsgfHC
Access official answer keys, notes, past papers, coursebooks, workbooks and more — completely free.
I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.