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Physics (AS & A Level) · Oct / Nov 2025 · Paper 14 · Question 6

9702Equations of motion

An aircraft on a runway accelerates uniformly from rest to its take-off speed of 58 m s–1. The acceleration of the aircraft is 4.2 m s–2, and the aircraft uses 74% of the length of the runway to reach its take-off speed. What is the length of the runway?

  1. A300 m
  2. B540 m
  3. C590 m
  4. D800 m

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Correct answer: B. 540 m

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