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WAEC Further Mathematics 2026 Question 39

Question 39

Statics

A uniform beam PQ of length 5m and weight 100N rests horizontally on supports P and Q. Find the reaction at P

  1. A.50 N
  2. B.55 N
  3. C.60 N
  4. D.75 N
Show the answer and explanation

Answer: A (50 N)

Explanation

The weight acts at the middle, 2.5 m from each end. Taking moments about Q: R_P × 5 = 100 × 2.5, so R_P = 50 N.