WAEC Physics 2021 Objective — Question 36
Question 36 of 50 from the West African Examinations Council (WAEC) Physics 2021 Objective paper, with the correct answer and a full explanation.
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36. A force of 10 N, acting continuously, increases the kinetic energy of an object from 20 J to 60 J. Find the distance moved by the object.
- A. 200 m
- B. 40 m
- C. 4 mCorrect
- D. 400 m
Explanation
Work done = ΔKE = 60-20 = 40 J = Force×distance. Distance = 40/10 = 4 m.
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