A-LevelPhysicsDynamics9702/12 · May/June 2014 · Q111 Mark
The graph shows the variation with time of the speed of a raindrop falling vertically through air. [Figure 11.1] Which statement 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.
AThe acceleration decreases to produce a steady speed.
BThe acceleration increases as the speed increases.
CThe air resistance decreases as the speed increases.
DThe resultant force increases as the speed increases.
✓ Correct answer
A: The acceleration decreases to produce a steady speed.
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