A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2013 · Q151 Mark

A uniform metre rule of weight 2.0 N is pivoted at the 60 cm mark. A 4.0 N weight is suspended from one end, causing the rule to rotate about the pivot. [Figure 15.1] At the instant when the rule is horizontal, what is the resultant turning moment about the pivot?

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Azero

B1.4 Nm

C1.6 Nm

D1.8 Nm

✓ Correct answer

B: 1.4 Nm

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2013 Paper 1 Variant 2, question 15.

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