Give four examples of couple in everyday life.
Step1: Definition of moment of couple:
The moment of a couple is equal to the product of either force and the perpendicular distance between the line of action of both the forces.
Step 2: Examples of couple in everyday life :
1. Steering wheel of a car.
2. Turning of a screw driver.
3. Opening and closing of water tap.
4. Winding the watch.