A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2023 · Q131 Mark

The diagram shows an experiment to determine the force exerted on a ball by a horizontal air flow. [Figure 13.1] The ball is suspended by a light string and weighs 0.15 N. The deflection of the string from vertical is 30°. The ball is in equilibrium. What is the force on the ball from the air flow?

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A0.075 N

B0.087 N

C0.26 N

D0.30 N

✓ Correct answer

B: 0.087 N

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2023 Paper 1 Variant 2, question 13.

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