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Physics (AS & A Level) · Oct / Nov 2016 · Paper 11 · Question 15

9702Equilibrium of forces

Four beams of the same length each have three forces acting on them. Which beam has both zero resultant force and zero resultant torque acting?

  1. A30 N, 50 N, 90 N with 50 cm and 30 cm distances
  2. B36 N, 70 N, 106 N with 50 cm and 30 cm distances
  3. C28 N, 35 N, 63 N with 50 cm and 30 cm distances
  4. D42 N, 70 N, 112 N with 50 cm and 30 cm distances

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Correct answer: D. 42 N, 70 N, 112 N with 50 cm and 30 cm distances

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