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Physics (AS & A Level) · Oct / Nov 2020 · Paper 13 · Question 12

9702Turning effects of forces

A couple applies a clockwise torque of 9.0 N m to a circular disc. Which diagram shows this couple?

  1. A9.0 N right at top, 9.0 N left at bottom, 50 cm
  2. B45 N right at top, 45 N left at bottom, 20 cm
  3. C45 N left at top, 45 N right at bottom, 10 cm
  4. D9.0 N left at top, 9.0 N right at bottom, 100 cm

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Correct answer: B. 45 N right at top, 45 N left at bottom, 20 cm

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