PhysicsWork, energy and powerJAMB
A machine lifts a 100 kg load through 4 m in 20 s. Its power output is: (g = 10 m/s²)
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Answer: C. 200 W
Work = mgh = 100 × 10 × 4 = 4000 J; power = 4000/20 = 200 W.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.