A-LevelPhysicsForces, density and pressure9702/12 · Feb/Mar 2021 · Q131 Mark

A mass of 30 kg is suspended from the end of a wire. A horizontal force F acts on the mass so that it is in equilibrium, with the wire at an angle of 30° to the vertical, as shown. [Figure 13.1] What is the magnitude of F?

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A17 N

B150 N

C170 N

D510 N

✓ Correct answer

C: 170 N

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2021 Paper 1 Variant 2, question 13.

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