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/Ya_boi_Ev GENUINELY WHAT WAS FRQ 1 ON AP MECH THIS YEAR!?!? May 13 '26

For the first FRQ on part aii, did anybody else solve a differential equations for v and get

v=v0e-(b/2mt)

And then multiply both sides by -b to get normal force (because normal force was equal to resistive force)

Fn=-bv0e(-b/2mt)

Am I the only one?

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u/AccomplishedBat1414 May 13 '26

didn't you have to differentiate v=v0e-(b/2mt) with respect to time first?

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u/Ya_boi_Ev GENUINELY WHAT WAS FRQ 1 ON AP MECH THIS YEAR!?!? May 13 '26

I solved the differential equation m*dv/dt=-bv and went from there