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A-LevelMathematicsMechanicsOct/Nov 2021Paper 4 Q57 Marks

A railway engine of mass 75 000 kg is moving up a straight hill inclined at an angle α to the horizontal, where sin α = 0.01. The engine is travelling at a constant speed of 30 ms⁻¹. The engine is working at 960 kW. There is a constant force resisting the motion of the engine.

Q: What topic does this question test?

This question tests Mechanics in A-Level Mathematics (syllabus code 9709). It is worth 7 marks.

📋 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 7 marks.

Source

This question appeared in the Cambridge A-Level Mathematics Oct/Nov 2021 examination, Paper 4 Variant 2.

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