2026, Question 2 · Translation Between Representations · 12 points · about 30 minutes

Two disks colliding on a track

Draw momentum vectors after a collision, derive the struck disk's kinetic energy, extend position graphs for both disks and the center of mass, and compare their momentum changes.

1 Read the question

The question is College Board's, from the 2026 exam. It starts on page 5 of the PDF.

Open Question 2 (PDF, page 5)

2 Write your answer

Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.

3 Score it

Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.

Scoring guidelines (PDF, page 6)

Question, scoring guidelines and Chief Reader report: College Board. The title and summary are ours.