A-LevelMathematicsMechanicsMay/June 2023Paper 4 Q24 Marks
A car of mass 1500kg is towing a trailer of mass mkg along a straight horizontal road. The car and the trailer are connected by a tow-bar which is horizontal, light and rigid. There is a resistance force of FN on the car and a resistance force of 200N on the trailer. The driving force of the car's engine is 3200N, the acceleration of the car is 1.25 ms⁻² and the tension in the tow-bar is 300N.
📋 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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