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Question: 1
What is Couple? Explain with examples.
Answer: 1
1-19Couple: Two equal and opposite parallel forces acting along different lines on a body is called a couple.
Explanation: Couple does not produce any translational motion bt only rotational motion.In other words the resultant force of a coupleis zero but the resultant of a coup;e is not zero, It is pure moment. The shortest distance between two couple forces is called couple arm.
Example:
1- Exrting force on bicycle pedals
2- Winding up the spring of a toy car
3- Opening and closing the cap of a bottle
4- Turning of a water tap etc.