JAMB Physics 2013 Objective — Question 10
Question 10 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2013 Objective paper, with the correct answer and a full explanation.
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If a pump is capable of lifting 5000kg of water through a vertical height of 60m in 15 minutes, the power of the pump is
- A. 2.5×10³Js⁻¹
- B. 2.5×10⁴Js⁻¹
- C. 3.3×10³Js⁻¹Correct
- D. 3.3×10²Js⁻¹
Explanation
P = mgh/t = (5000×10×60)/(15×60) = 3000000/900 = 3333.3W ≈ 3.3×10³Js⁻¹.
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