WAEC Physics 2023 Objective — Question 4
Question 4 of 50 from the West African Examinations Council (WAEC) Physics 2023 Objective paper, with the correct answer and a full explanation.
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A ball of mass 0.8 kg is dropped from a height, H. Just before hitting the ground, its velocity is 5.0 ms⁻¹. Determine H. [g=10 ms⁻²]
- A. 1.25 mCorrect
- B. 1.60 m
- C. 4.00 m
- D. 6.25 m
Explanation
Using v²=u²+2gH: 25=0+2(10)H → H=25/20=1.25m.
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