Which of the following is an example of a couple?

Physics

JAMB 2023

A. All of the above.
B. The forces that are applied to the handle of a screwdriver when you twist it.
C. The forces that are applied to a cross wench to loosen or tighten the lug nuts on a wheel of a car.
D. The forces that are applied to the steering wheel of a car when you turn it.

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Correct Answer: Option A

Explanation

A couple is a pair of forces that are equal in magnitude but opposite in direction, and that are applied to a body at different points. The forces of a couple do not produce any translation, but they do produce a rotation.

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