BECE Basic Science 2022 Objective — Question 15
Question 15 of 120 from the Basic Education Certificate Examination (Junior WAEC) (BECE) Basic Science 2022 Objective paper, with the correct answer and a full explanation.
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Calculate the power of a pump that is required to lift 50 kg of water through a vertical height 8m in 3s. [g = 10 ms⁻²]
- A. 13.33 W
- B. 22.67 W
- C. 50.62 W
- D. 1333.33 WCorrect
- E. 12000.00 W
Explanation
Power = mgh/t = 50 × 10 × 8 ÷ 3 = 4000 ÷ 3 = 1333.33 W.
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