A load of mass120kg is raised vertically through a height of 2m in 30s by...
PHYSICS
WAEC 2002
A load of mass120kg is raised vertically through a height of 2m in 30s by a machine whose efficiency is 100%. Calculate the power generated by the machine. [g = 10ms-2]
- A. 60W
- B. 80W
- C. 100W
- D. 120W
Correct Answer: B. 80W
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