A-LevelPhysicsPhysical quantities and units9702/12 · May/June 2012 · Q31 Mark

A vector has magnitude R and perpendicular components P and Q, as shown in the diagram. Which row correctly describes the perpendicular components?

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.

Avertical component: Q, horizontal component: R sinθ

Bvertical component: R cosθ, horizontal component: P

Cvertical component: R cosθ, horizontal component: R sinθ

Dvertical component: R sinθ, horizontal component: R cosθ

✓ Correct answer

D: vertical component: R sinθ, horizontal component: R cosθ

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Topic: Physical quantities and units, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, May/June 2012 Paper 1 Variant 2, question 3.

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