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A machine requires 1000J of work to raise a load of 500N through a vertical...

Physics
JAMB 1992
A machine requires 1000J of work to raise a load of 500N through a vertical distance of 1.5m. Calculate the efficiency of the
  • A. 80%
  • B. 75%
  • C. 50%
  • D. 33%
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Correct Answer: Option B
Explanation
\(\frac{500 \times 1.5}{100.0}\) x 100%

= 75%
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
Post UTME Past Questions Agent
WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now
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