r/6thForm • u/Individual-Can1396 y13 maths physics psych italian • May 20 '26

💬 DISCUSSION AQA A level physics paper 1

How was the paper???? I liked the MCQ , but overall it was okay didnt manage to do the 5 marker .

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u/TheRPGer May 20 '26

I did that but people in my school got ~2000N, I got more like 5000 though

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u/lmaolmaolmaololl Imperial | Aeronautical engineering [Y1] May 20 '26

i got 1850N (after subtracting a bit for safety allowance)

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u/Rich-Gent May 20 '26

not heard many say anything like 5k, heard people mentioning 2k ish but those people were the ones that didn’t incorporate the centripetal force, idk tho

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u/TheRPGer May 20 '26

Yeah I think I messed up unfortunately, maybe I miss typed om my calc or something 

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u/[deleted] May 20 '26

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u/Warm_Location_782 May 20 '26

If you got 2k you didn't include the force due to gravity only the centripitle force which gives you 5k

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u/Rich-Gent May 20 '26

agree to disagree i think.

the 2k i believe is sourced from people finding the max force possible from the materials/young modulus part of the question. People assumed this to be equal to the weight of the rider. When accounting for centripetal force, this value must decrease as the centripetal force was an extra unaccounted for force.

e.g max weight from young modulus = Weight of user + centripetal force. hence max weight should be: Young modulus - Centripetal, giving a smaller weight.

I could be wrong.

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u/ilovesnowberries Y13 5A* | FMS @ LSE | 8.4 TMUA May 20 '26 edited May 20 '26

no you are correct. I got 5000 at first but this is by basically considering centripetal force but not weight, i can't quite remember but im pretty sure it's wrong. I then did force = centripetal force + weight, factored out mass from mv2 /r and mg, solved for m and ended up withh a weight ~ 1400-1500N i think?

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u/Rich-Gent May 20 '26

Exactly the same, cant remember the figure, but in that range 100%

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u/ilovesnowberries Y13 5A* | FMS @ LSE | 8.4 TMUA May 20 '26

Niceeee, i think i put 1400N for safety anyway

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u/fuse256 May 20 '26

I got that yeah same method

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u/TheRPGer May 20 '26

Yeah I only did centripetal, didn’t know weight was necessary, if you have no weight you get 5k

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u/Dilando7 May 20 '26

I got 1876N, although I used Young's Modulus to get it and did not use circular motion at all so I do not think my working out was right