WAEC Further Mathematics 2025 Objective — Question 25
Question 25 of 40 from the West African Examinations Council (WAEC) Further Mathematics 2025 Objective paper, with the correct answer and a full explanation.
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The distance S in metres covered by a particle in t seconds is S = 7/2 t² + 5t + 18. Find the acceleration of the particle.
- A. 14 ms⁻²
- B. 13 ms⁻²
- C. 10 ms⁻²
- D. 7 ms⁻²Correct
Explanation
v = ds/dt = 7t+5. Acceleration a = dv/dt = 7 ms⁻² (constant).
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