Two forces act on a circular disc as shown. [Diagram shows a circular disc with two forces acting on it: 3N upwards from the top edge, and 4N to the right from the right edge.] Which diagram shows the line of action of the resultant force?
✓ Correct Answer
The correct answer is A: circular disc with a 5N force acting diagonally upwards and to the right, originating from the center. The force is angled such that its vertical component is 3N and horizontal component is 4N.
📋 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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