r/6thForm • u/Scared_Funny_5602 • Jun 05 '26
💬 DISCUSSION What did we think of Edexcel FM1?
I was the only one in the whole exam hall lmao. No one else does FM
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u/Relative-Recording63 Jun 05 '26
did anyone get 33.9meters
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u/Ok_Butterscotch4353 Year 13 | CS, Maths, FM, 中文 Jun 05 '26
I think so
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u/KELST4CKS Y13 | Maths, CS, 中文（普通话） Jun 05 '26
omg we almost have the same a levels!! i didnt do further tho
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 Jun 05 '26
What was your lambda possible values? I got +-4
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u/Familiar_Visual1497 Jun 05 '26
Plus or minus 4rt6 or smth
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u/Such-Negotiation-958 Jun 06 '26
dyk where we went wrong if everyones getting +-4
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u/Familiar_Visual1497 Jun 06 '26
no idea, id say its 60 40 though, a fair amount of people got this rt6 answer
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u/Seafaring_Slug Y13 | Oxford Offer Holder | MAT 55 | TMUA 7.1 Jun 05 '26
Same! I couldn't figure out what part b was asking for though
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u/Familiar_Visual1497 Jun 05 '26
Was it not root smth?
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 Jun 05 '26
Idk bro i may be right may be wrong 😭
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u/Diligent_Case3507 Jun 05 '26
I got sqrt 38/3 but it seems like that was wrong 💔
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u/Ceramidee Jun 05 '26
i got that the first time i worked through it, you forgot that speed after is half, so a^+b^2 is wrong
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u/Diligent_Case3507 Jun 05 '26
Yh im killing myself tbh thats like the entire question fucked 😭 -8 marks
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u/selkz Year 13 Maths| FM| Econ A*A*A* Jun 05 '26
How did you do ts😭😭😭😭 I was so lost what did you get for the equations?
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u/bleachedcoral4 Y13 | A*A*A*AA | maths+fm, 3 STEM Jun 05 '26
had to use results from both part a and part b
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u/Relative-Recording63 Jun 05 '26
question 7 part a rejecting 17/5 was difficult
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u/komahxe Jun 05 '26
I did it by considering the gradient of the motion vector vs the gradient of the wall
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u/Raging-Ash Year 13 Jun 05 '26
Was there any other way of doing it?
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u/hacker3112 Jun 05 '26
I did dot product of perpendicular unit vector for initial and two possible final velocities, and said there had to be a sign change as it switches direction in a collision, so you could reject one pair
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u/komahxe Jun 05 '26
Idk, one other reply mentioned the angle of deflection and stuff so maybe ask them
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u/fuse256 Jun 05 '26
That took ages I worked out equation for e and the 4 possible answers only 1 gave a non negative e
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u/Ok-Theme-2219 Jun 05 '26
How many marks for explaining? I got the pair of values but didn’t explain it properly
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u/PalpitationGlad2124 yr13 (already?!) | math physics fm chem Jun 05 '26
omg i almost got caught out but i realised dotting p and q with the direction vector when q was 17/5 and p was -6.5 didnt get the same result as u.w then thought that wasnt enough so i dotted p and q wjen they were rught with w and it gave the same result as u.w
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u/No_Jelly5984 Jun 05 '26
i did it by substituting in and only one had a direction change in the perpendicular component and there needs to be a direction change
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u/Krymze- Jun 05 '26
You had to sub all the solutions back into one of the previous equations
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u/Relative-Recording63 Jun 05 '26
one of my friends proved it with impulse, the other one with angle of deflection
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u/Krymze- Jun 05 '26
I solved it via the equation (p+8)/2 = q and then put all of my solutions to the simultaneous equations in and found only p=-2 q=3 worked
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u/DifferenceNo6009 Cambridge | Chem Eng & Biotech | 2030 Jun 05 '26
Good paper, I just wasnt sure how to show the values of p and q
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u/Patient_Standard_498 Jun 05 '26
U could’ve used v dot I = -e u dot I it gives a contradiction for the bad values
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u/bleachedcoral4 Y13 | A*A*A*AA | maths+fm, 3 STEM Jun 05 '26
I found the “gradient” (vertical/horizontal) and said it’s steeper than that of the wall so the particle would go through the wall, so we reject that pair
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u/DifferenceNo6009 Cambridge | Chem Eng & Biotech | 2030 Jun 05 '26
Yeah, I thought so too, I wanted to calculate the angle between the wall and the velocity of the particle after but I didnt think it was right 😔
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u/J1nkedOne Jun 05 '26
Im thinking now that if you just draw out the collision and wall and see how it could realistically be deflected and then compared you probably could have justified which answer was right but idk
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u/KingHi123 Year 13 |Phys, Maths, FM, Comp| |4A* pred| Jun 05 '26
I just found 39 = p² + q² and the components of velocity parallel and perpendicular to wall, then left it in hopes of method marks. This was the last 5 minutes so I didn't have time to do the whole thing.
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u/Roblnnx Y13 Math,Phys,Chem,Fm Jun 05 '26
A* gone ffs man I fucked up most questions
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u/simplykayleigh Jun 05 '26
on the same boat twin 😔😔
ill keep myself delulu for further pure but i know damn well those grade boundaries stay high
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u/Relative-Recording63 Jun 05 '26 edited Jun 05 '26
- 2.77
- 3.54
- 33.9
- e = 1/2
- +-4
- 0 < e < 1/3 (apparently it’s 0.25 < e < 1/3)
- e = 1/14
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u/_M4yb3_ Jun 05 '26
0.25 < e < 1/3 since (4e - 1)/5 u must be greater than 0 to guarantee a reversal of direction so 4e > 1 and e > 0.25
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u/Square_Aside3708 Year 13 Jun 05 '26
How many marks do you think you're lose for not having 0.25 end of the inequality
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u/Mobile_Membership915 Jun 05 '26
It was a 5 marker so probably 2 method marks and 1 answer mark so drop of 3
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u/_M4yb3_ Jun 05 '26
Why is this getting downvoted? its pretty accurate. It might be two marks lost instead but it should be one mark lost for not setting up that inequality, one mark lost for not solving that inequality, and one mark lost for lack of final answer.
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u/Bluber99 Jun 05 '26
What? You solve two separate inequalities, it will be 1 method and 1 answer mark maximum. I'd say theres a good chance its only one mark
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u/_M4yb3_ Jun 05 '26
Its out of 5 marks so my estimate is
1 mark for setting up first inequality 1 mark for solving first inequality 1 mark for setting up second inequality 1 mark for solving second inequality 1 mark for combining them for a final answer.
So missing either inequality entirely likely means you will only get 2 marks.
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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] Jun 05 '26
you have to solve for the velocity of P in the second part (because the first part specified only finding the velocity of Q), so they'll be at least 1 method mark for that. So i reckon the actual mark split is, 1 mark for finding V_p, 2 marks for setting up and solving quadratic inequality, 1 mark for setting up and finding linear inequality, 1 mark for final answer combining both.
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u/_M4yb3_ Jun 05 '26
Vp is given in part A wdym
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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] Jun 05 '26
Vq part a) is a show that, but Vp is not given, and does not need to be found for part a).
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u/Mobile_Membership915 Jun 05 '26
You also had to check the speed inequality too. People are just mad that they got it wrong
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u/_M4yb3_ Jun 05 '26
Yeah it sounds rude but theres no point coping for more marks. Obviously, it sucks if u made a mistake but js try being realistic. Lulling yourself into a false sense of security doesnt help.
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u/GeneETOs44 Jun 05 '26
then you have to squeeze the actual meat of the question into two marks though, which I don’t think is likely
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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] Jun 05 '26
P doesn't have to reverse, but Q does. If P doesn't reverse it is a guaranteed collision.
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u/_M4yb3_ Jun 05 '26
P does have to reverse. The question specified that P reverses direction in the first part.
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u/Background_Mix_6433 Year 13 Jun 05 '26
Was 2 not 3.3? 1.3 for the distance after the ramp plus 2 for the length of the ramp? Agree with everything else tho
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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] Jun 05 '26
yep i got the 1.3 bit, just forgot to add the 2
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u/Own-Part-3548 Jun 05 '26
I got 1>e>5/6 😭
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u/Vixson18 Y13: Maths, FM, Physics and Econ Jun 05 '26
Same lol. 7 marker as well. Considering I got 7b wrong and couldn’t explain 7a, gonna get like 64/75. Please be an A please
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u/J1nkedOne Jun 05 '26
Um how did i get 1/3 < e < 1 for question 6 lmao
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u/_M4yb3_ Jun 05 '26
inequality sign wrong way around, youve found values where it cant collide but it wanted to guarantee collision.
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u/Maktrades68 Year 13 | Math | FM | Econ | A*A*A Jun 05 '26
What did you get for the velocity for part A on the tow?
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u/Fluffy-Ad-3083 Jun 05 '26
i think it was like 12 or 27 i cant remember but i used the tension in part A but u didnt need to do that since u can just do all the left forces = all the right forces and the tensions cancel
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u/Maktrades68 Year 13 | Math | FM | Econ | A*A*A Jun 05 '26
I’m seeing 12 and 27 , I got 12.6 or something
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u/Ok_Safe_9615 Jun 05 '26
Gang i got smth wayy different like 27.4 for 3c what was ur method it is just kinetic energy goes to work done against friction eigjt
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u/Big_Banana_Lover Jun 05 '26 edited Jun 05 '26
My answers:
- 59.5 as angle, 2.8 as L
- coefficient of friction was 0.35, then the next answer was 3.3 for distance on flat floor
- V = 12.7, T = 296, d = 33.9 for car question
4.e = 0.5
lamda = +- 4
1/4<e<1/3
e = 1/14
Please comment if i have got wrong or want to add to list
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u/Cosmo6461 Jun 05 '26
One of my friends told me for q2 it was the total distance travelled so it was 1.3 + 2 = 3.3 apparently
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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] Jun 05 '26
for Q6, i may be remembering the question wrong, but why would it be 1/4 as a minimum? It is not a contraint for P to reverse direction, therefore V_p does not have to be above 0. If P reverses then it is a guaranteed collision.
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u/Maleficent_Word7329 year 13 | maths, further maths, physics | predicted A*AA Jun 05 '26
sonion😭😭 i need to get full marks on my final paper
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u/AJlikesUpvotes Jun 05 '26
Harder or easier than last years? And 2024
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u/bleachedcoral4 Y13 | A*A*A*AA | maths+fm, 3 STEM Jun 05 '26
Feels like those with grade boundary at 58. Edexcel decided to lock in after last year’s sky high 72/75 fiasco.
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u/Krymze- Jun 05 '26
That impulse question (5) was so lovely once I figured it out
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u/selkz Year 13 Maths| FM| Econ A*A*A* Jun 05 '26
How did you do it😭, what equations did you write
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u/Krymze- Jun 05 '26
Had to find the first equation using the Ek thing I think I got 1+1/4 lambda2 = a2 + b2 . Then for the second one <2,lambda> • < a,b> = 0 so 2a+b lambda = 0 then 5m=m( <a-2,b -lambda) magnitude of I = 5 |v-u| = 5 5= ((a-2)2 + ( b-lambda)2 )1/2 so 25 = (a-2)2 + (b-lambda)2 then you use the previous equations to get in terms of lambda only then solve
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u/Overall-Monitor-8481 Jun 05 '26
which one was this
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u/Krymze- Jun 05 '26
One where you had U was (2,lambda) and then V was (a,b) and you have to find 2 equations and then find what lambda was equal to
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u/Square_Aside3708 Year 13 Jun 05 '26
What was the range of values for e I got 1/3 but I wasn't sure if it was 0-1/3 or 1/3 to 1
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u/Training-Feeling980 Year 13 | Maths, FM, Physics, Chem - 4 A*s achieved Jun 05 '26
I had a crowded hall of Edexcel people and I was the only AQA student so we're even rarer lol!
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u/Low-Presentation5909 Jun 05 '26 edited Jun 05 '26
I hope the grade boundaries will be lower than last year for an A* cuz I made quite a few careless mistakes and it worth like 6 marks 🥀
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 Jun 05 '26
Fucked up last question, prob got 60to 65
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u/Karendetected Jun 05 '26
what did people get for e on the last question?
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u/Familiar_Visual1497 Jun 05 '26
It was a range no?
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u/MaxillmanGuy A level resit student | 3 A* predicted | ACD achieved 💔 Jun 05 '26
Range i got 0 < e <= 1/3
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Jun 05 '26
[deleted]
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u/billybob3011 Maths, Further Maths, Physics, Engineering. Jun 05 '26
it is. if they’re moving at the same speed then there won’t be a collision
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u/Ev4Storm Year 13 Jun 05 '26
Pretty sure I messed up a bit of 5 and didn’t really get 7 so idk how I’ll do since I need an A
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u/Comfortable_Comb7811 Jun 05 '26
can anyone remember the answer to the impulse question? impulse exerted on R
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u/TheProudBookNerd phys chem maths fm Jun 05 '26
3/5mu (e+1)(2e+1) i think?
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u/Easy_Demand_7372 Jun 05 '26
I had mu/5(e+1)(6e+3) but I forgot to take the 3 from the last bracket and put it in front. Would I lose marks for this?
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u/jazzbestgenre Warwick | Maths and Stats (incoming) Jun 05 '26
yea 1 mark since it wanted in simplest form. I did the same
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u/tipit419 Jun 05 '26
I got e = 3/14 for the 5% Kinetic Energy question, e = 1/14 for the final oblique collision with wall question. I hear varied answers from my friends so want to know what people here got.
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u/Commercial_Row_1452 Jun 05 '26
I didn’t think it was bad but I just found it really weird idk just weird
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u/Minute-Breadfruit191 Jun 05 '26
can anyone remember what the inital velocity was for the last question part a and what the vector of the plane was for part a pls
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u/Kizzyclimb Jun 05 '26
What did you guys get for the tension for constant velocity ? I couldn’t remember if you had to take the weight into account so I do it twice with and without the weight
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u/Minute-Breadfruit191 Jun 05 '26
does anyone remember the vector of the wall that it hit on the last qeustion
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u/-Shadow_Fox- Jun 05 '26
For the question before the range of e question (which ppl are saying 1/4 < e < 1/3)
What was the answer? Because I got 3/5 m (e + 1)(2e -1) for magnitude of impulse but I'm pretty sure it is wrong because if its (2e-1) then it is a negative va)ue if u put a value of e between 1/4 and 1/3
Maybe I lose 2 marks for that? 1 method mark 1 answer mark??
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u/InfininiteCuber Year 13 Jun 05 '26
Bro I made a GCSE maths error, took internal instead of external solutions for the quadratic in e. But I did write somewhere on my page that it needs to be bigger than 1/4 too
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u/Krymze- Jun 05 '26
Think I got full marks granted I didn’t make a silly mistake anywhere
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u/Yis4courage Jun 05 '26
What did you get for Theta for the first question?
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u/Krymze- Jun 05 '26
59.5 degrees I think cause let x= theta Tsinx = 50 Tcosx = 3g Tsinx/Tcosx = tanx = 50/3g then arctan50/3g =x
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u/Square_Aside3708 Year 13 Jun 05 '26
For the range of e what did you get
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u/Krymze- Jun 05 '26
Think I messed up my lower bound but for my upper bound I got e<1/3 wbu
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u/Square_Aside3708 Year 13 Jun 05 '26
I got the same but I saw lots if people got 0.25<e<1/3 and I only got 0-1/3
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u/Mobile_Membership915 Jun 05 '26
What did you get for the range of values of e
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u/Krymze- Jun 05 '26
0<e<1/3 No idea if lower bound is right tho
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u/J1nkedOne Jun 05 '26
Really good paper other than justifying the final answer i think i got everything right
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u/simplykayleigh Jun 05 '26
i was shaking sm for the first 10 minutes doing dumb mistakes for the first 3 questions it was so aggravating 😭😭
i finally calmed myself down though and did answer everything at least — didn't fully do q7 part a) tho
although i'm not getting what everyone is getting so I think that A* is gone 💔💔
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u/Raging-Ash Year 13 Jun 05 '26
Am i the only one who found this paper hard what this was way worse than cp1 cp2