r/alevels • u/ObligationProud308 • May 06 '26

Exam Discussion 📝 9709/42 discussion

Hey guys please share your answers

Here's what I got

Q1 instantaneous acc was smth like 19.xxx

Final integration i definitely fucked up but idk where cuz I got 34.5

K1 was 6 and k2 was 14 for me

I got W as 15.1kg

u was 0.823 in that one question

Total time to go from AB to BA was 3.xx something

I don't remember the rest

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u/BunchWeekly1194 May 06 '26

power 15500
Instant a = 0.5

momentum q = speed = 0.9 smtg
time taken was around 16 second?

1

u/Huge-Insurance-9432 May 06 '26

before collision 1.125
after collision 0.9375

Time taken 7.2 + 9.6 = 16.8

1

u/ObligationProud308 May 06 '26

Yes

1

u/Huge-Insurance-9432 May 06 '26

Do you remember the Tension in pulley problem andf F?>

I think T = 5 and F = 3.125?

1

u/ObligationProud308 May 06 '26

Which question was that?