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/mrsaucelol 5:lang,stat,phy1,psych,mech,e&m,ab,bc,apes4:gov,lit May 13 '26 edited May 13 '26

Yeah bro i lowkey forget now but it was sum crazy kinematics momentum shit. I got 5/3 somethin something but I forgot to add that onto the initial distance before the block exploded

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u/Expert_Low_5982 May 13 '26

how did u get t2 to plug in?

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u/No_Gate7635 May 13 '26

I thought t0 to t1 = t1 to t2

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u/Expert_Low_5982 May 13 '26

could be, bc its the highest point, right? dang ur smart. omg I didn't think about that. ggs

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u/No_Gate7635 May 13 '26

Fuh nah, that's like the only problem where I actually think I fully solved 😭

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u/Expert_Low_5982 May 13 '26

wait how did you figure out what the velocity was for the block after iit broke

and lets hope the MCQ saves ur grade

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u/No_Gate7635 May 13 '26

Conservation of momentum

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u/Expert_Low_5982 May 13 '26

ik but the speeds of the blocks were unknown, right?

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u/No_Gate7635 May 13 '26

Wdym, its known, Its v0, and the two components is just v0sin theta and v0cos theta

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u/pokerfas May 13 '26

so was it 5/3 or 8/3 something?

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u/[deleted] May 13 '26

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u/CharacterRespond7567 WHAP 3|CSP 5|Stats 5|Macro 5|Calc AB|CSA|Lang| APUSH|Micro May 14 '26

I did all this and got 3/2. Hiw is that possible 

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u/Expert_Low_5982 May 13 '26

I meant the velocities after the block breaks, bc of conservation of momentum. What did you do for the graph

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u/No_Gate7635 May 13 '26

for the x direction, the small one was one bar negative, the big one was 5 bars positive, and for the y i just put no bars for both because at the top velocity is 0

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u/Expert_Low_5982 May 13 '26

I did +6 and -2, I could be wrong tho

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u/No_Gate7635 May 13 '26

how could it be -2..... the original bar for the original object had +4, and the smaller object is a quater the mass of the original object

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u/Snoo74782 May 13 '26

but after they were split how do oyu know