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a beam PQ pivoted at P carries a load of 80N as shown above. Calculate...

Physics
WAEC 2001
a beam PQ pivoted at P carries a load of 80N as shown above. Calculate the effort E, required to keep it horizontal. [neglect the weight of the beam]
  • A. 32.0N
  • B. 26.7N
  • C. 16.0N
  • D. 13.3N
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Correct Answer: Option D
Explanation
E x 3 = 80 x 0.5

E3 = 40

E = \(\frac{40}{3} = 13.3N\)
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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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