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Physics (AS & A Level) · May / June 2026 · Paper 13 · Question 17

9702Energy conservation

An object of mass m has a constant acceleration due to a constant resultant force F. In a distance s, the speed of the object is increased from u to v. What is the relationship between s, m, F, u and v?

  1. AFs = mv^2 - mu^2
  2. B2Fs = mv^2 - mu^2
  3. Cv^2u = u^2 - (F/m)s
  4. Dv^2 = u^2 - 2(F/m)s

As printed in the paper

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Correct answer: B. 2Fs = mv^2 - mu^2

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