A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2020 · Q151 Mark

A cylindrical block of ice of cross-sectional area 12 m² is floating, partially submerged, in the sea. The density of the sea water is 1020 kg m⁻³. A polar bear of mass 400 kg steps onto the block of ice. [Figure 15.1] The block of ice sinks a vertical distance d. What is the value of d?

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A3.3 mm

B3.3 cm

C0.32 m

D3.1 m

✓ Correct answer

B: 3.3 cm

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Topic: Forces, density and pressure, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2020 Paper 1 Variant 2, question 15.

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