A-LevelPhysicsForces, density and pressure9702/12 · Feb/Mar 2017 · Q111 Mark

A spherical object falls through water at constant speed. Three forces act on the object. Which diagram, showing these three forces to scale, is correct?

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.

A[Diagram showing one upward force and two downward forces, not balanced]

B[Diagram showing one upward force balanced by two downward forces]

C[Diagram showing two upward forces and one downward force, not balanced]

D[Diagram showing two upward forces and one downward force, not balanced]

✓ Correct answer

B: [Diagram showing one upward force balanced by two downward forces]

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2017 Paper 1 Variant 2, question 11.

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