A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2020 · Q121 Mark

A rigid circular disc of radius r has its centre at X. A number of forces of equal magnitude F act at the edge of the disc. All the forces are in the plane of the disc. Which arrangement of forces provides a total moment of magnitude 2Fr about X?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A[Diagram option A]

B[Diagram option B]

C[Diagram option C]

D[Diagram option D]

✓ Correct answer

A: [Diagram option A]

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2020 Paper 1 Variant 2, question 12.

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