couple force and single force difference between for 11th class physics.
Answers
Answer:In mechanics, a couple refers to two parallel forces that are equal in magnitude, opposite in sense and do not share a line of action. A better term is force couple or pure moment. Its effect is to create rotation without translation, or more generally without any acceleration of the centre of mass. In rigid body mechanics, force couples are free vectors, meaning their effects on a body are independent of torque. This is not to be confused with the term torque as it is used in physics, where it is merely a synonym of moment. Instead, torque is a special case of moment.
Explanation:
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Major two differences between them. The moment is produced by a single force and we need two forces to make a couple. The moment may have a resultant force but the resultant force of a couple is zero.
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