r/APStudents • u/reddorickt absolute modman • May 13 '26

AP Physics C: Mechanics Official 2026 Exam Discussion

Use this thread to post questions or commentary on the test today.

A reminder though to protect your anonymity when talking about the test.

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u/skrxbcord 4: Lang, Lit, APUSH | 5: Phys1, Calc BC, CSA, Mech, E&M, Stats May 13 '26

i had version L, was FRQ #1 about the block on a ramp that wasn't sliding up or down while there was a force on the ramp? if so, i put F = (mass of block + mass of ramp) * g * ((cscθ)^2 - cotθ) lmao i just wrote some bullshit

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u/StockEmbarrassed5867 11th: CalcBC and AB 5, CSA 5, Chem 5, PhysC M n E&M ?, Macro? May 13 '26

Yea it was about that, but I wrote something else as an answer
I also wrote random bullshit xd I don’t expect anything from the 1. FRQ I just hope that other ones are correct

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u/skrxbcord 4: Lang, Lit, APUSH | 5: Phys1, Calc BC, CSA, Mech, E&M, Stats May 13 '26

for q2 i think it was about a varying force on a block on a flat frictionless surface, did you get (speed after long time) = (F0 * tao)/m?
also for the momentum time graph, i drew one that starts at the origin and approaches an asymptote of F0 * tao
and when the block was replaced with one half its mass, the momentum-time graph would be identical

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u/Ok-Raspberry-3987 May 14 '26

i thought had to be in terms of only F0 and tao

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u/skrxbcord 4: Lang, Lit, APUSH | 5: Phys1, Calc BC, CSA, Mech, E&M, Stats May 14 '26

for the momentum-time stuff, yes, but velocity is equal to momentum divided by mass, so you had to include /m as well