9709 · October/November 2025 · examinable unit
Cambridge Mathematics · 8 marks. This page is the question object — what is being tested — not the mark scheme.
Stem preview
A particle starts from rest at a point O. The acceleration of the particle at time t s after leaving O is a m s⁻², where a = 2(t+1)⁻¹/² - 1 for t ≥ 0. Find the…
Full stem stays in the official paper. We show a short excerpt so you can identify the item, then attempt your own answer.
This 9709/42 item (8 marks, October/November 2025) is testing whether you can apply the linked topic under timed exam conditions — not whether you can recall a textbook paragraph. Read the command word, identify the quantity or argument required, and plan the mark-earning steps before you write.
After you attempt this question, mark it, then take another 9709 past-paper item on the same topic so the weakness becomes a habit fix — not a one-off score.