Which of the following is an example of a couple?

Source: JAMB · 2023

Which of the following is an example of a couple?

  1. The forces that are applied to the steering wheel of a car when you turn it.
  2. The forces that are applied to a cross wench to loosen or tighten the lug nuts on a wheel of a car.
  3. The forces that are applied to the handle of a screwdriver when you twist it.
  4. All of the above. ✓
Explanation

A couple is a pair of equal, opposite, parallel forces that do not act along the same line. It produces turning with no overall push.

Turning a steering wheel, loosening wheel nuts with a cross wrench and twisting a screwdriver all use two such forces. So the answer is all of the above.

Was this explanation helpful?

Something wrong or missing? Tell us — we read every report and fix issues fast.