# Replace the three forces shown by a force-couple system.

• McAfee
In summary, a force-couple system is a combination of forces acting on an object, resulting in a pure moment or torque. It differs from a single force by not having a point of application and producing rotational motion. It can replace parallel forces, non-parallel forces, and a single force with a moment. The resultant moment is determined by summing the individual moments of each force. Examples of force-couple systems include opening a door, turning a steering wheel, and using a wrench to tighten a bolt.
McAfee

## Homework Equations

included in the problem

## The Attempt at a Solution

included in the problem.

As you can see I already solved for the force part of the problem. What I'm having trouble with is what to do with the 40mm and 20mm of the problem. Do I even have to included it in the problem. If so where do I. Do I have the right step up for the couple part?

help .

## 1. What is a force-couple system?

A force-couple system is a combination of two or more forces acting on an object, where the forces do not intersect at a common point and their resultant is a pure moment or torque.

## 2. How is a force-couple system different from a single force?

A single force has a point of application and a line of action, while a force-couple system has a line of action but no point of application. Additionally, a single force produces translational motion, while a force-couple system produces rotational motion.

## 3. What are the three forces that can be replaced by a force-couple system?

The three forces that can be replaced by a force-couple system are parallel forces, non-parallel forces, and a single force with a moment acting on it.

## 4. How is the resultant moment determined in a force-couple system?

The resultant moment in a force-couple system is determined by finding the algebraic sum of the individual moments of each force in the system.

## 5. What are some real-life examples of force-couple systems?

Some examples of force-couple systems in everyday life include opening a door, turning a steering wheel, and using a wrench to tighten a bolt. These actions all involve the combination of two or more forces to produce a rotational motion.

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