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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
1

A 200 kg load is raised using a 110 m long lever as shown in the diagram above. The load is 10m from the pivot P. If the efficiency of the the lever is 80%, find the effort E required to lift the load.

[Take g = 10ms-2]

  • A. 250
  • B. 300
  • C. 450
  • D. 200
View Answer & Discuss (10) JAMB 2023
2

If the velocity ratio of a machine is 4, what does it mean?

  • A. Load and the effort are equal.
  • B. Distance moved by effort is 4 times greater than the distance moved by load.
  • C. The efficiency is low
  • D. The load is greater than the effort
View Answer & Discuss (2) JAMB 2024
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 127076
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