A-LevelPhysicsForces, density and pressure9702/12 · May/June 2025 · Q171 Mark
The diagram shows a couple. [Diagram shows two parallel forces of equal magnitude acting in opposite directions, separated by a perpendicular distance.] How is the torque of the couple calculated?
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A1/2 × perpendicular distance between the forces × magnitude of one of the forces
Bperpendicular distance between the forces × magnitude of one of the forces
Cperpendicular distance between the forces × magnitude of the sum of the forces
D2 × perpendicular distance between the forces × magnitude of one of the forces
✓ Correct answer
B: perpendicular distance between the forces × magnitude of one of the forces
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