Which of the following is an example of a couple?
PHYSICS
JAMB 2023
Which of the following is an example of a couple?
- 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.
Correct Answer: A. All of the above.
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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