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Rigid Body Dynamics: Torque — Couple MCQ

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Torque — CoupleMediumQuestion 30331

Question

A couple consists of two equal and opposite forces separated by distance d. The torque of the couple about any point is:
  1. A
    Zero
  2. B
    Fd/2
  3. C
    Fd
    Correct
  4. D
    2Fd

Correct answer

Fd

Explanation

A couple's torque is F×d regardless of the reference point — this is a unique property of couples.

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