A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2025 · Q141 Mark

The diagram shows a uniform bar of mass M and length L resting on a pivot at a distance x from end X. [Figure 14.0] An object of mass m is placed on the bar at distance y from the pivot so that the bar is in equilibrium. What is an expression for y?

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AXM / m

BM/m (L-x)

CM/2m (L-2x)

D1/m (Lm-XM)

✓ Correct answer

C: M/2m (L-2x)

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2025 Paper 1 Variant 2, question 14.

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