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A-LevelMathematicsMechanicsOct/Nov 2022Paper 4 Q712 Marks

A particle P travels in a straight line, starting at rest from a point O. The acceleration of P at time t s after leaving O is denoted by a ms⁻², where a = 0.3t² for 0 ≤ t ≤ 4, a = -kt⁻³ᐟ² for 4 < t < T, where k and T are constants.

Q: What topic does this question test?

This question tests Mechanics in A-Level Mathematics (syllabus code 9709). It is worth 12 marks.

Q: Which exam paper is this question from?

This question appeared in the Cambridge A-Level Mathematics Oct/Nov 2022 examination, Paper 4 Variant 2 (9709_w22_qp_42.pdf).

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Mathematics Question

Topic

This structured question tests Mechanics in A-Level Mathematics (syllabus code 9709). It is worth 12 marks.

Source

This question appeared in the Cambridge A-Level Mathematics Oct/Nov 2022 examination, Paper 4 Variant 2.

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