A force can

Options

A. move a body
B. stops a moving body
C. keep a body at rest after acting on it
D. All of the above

Answer

To solve the question, we need to analyze the effects of force on a body based on Newton's laws of motion.

### Step-by-Step Solution:

1. **Understanding the Concept of Force**:
- A force is a vector quantity that can cause an object to accelerate, decelerate, or change its direction. It can also change the state of motion of an object.

2. **Applying Newton's First Law of Motion**:
- According to Newton's First Law (the law of inertia), an object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force. This means that a force is necessary to change the state of motion of an object.

3. **Force Can Move a Body**:
- If a body is at rest, applying a force can set it into motion. For example, pushing a stationary car will cause it to move.

4. **Force Can Stop a Moving Body**:
- If a body is in motion, applying a force in the opposite direction can stop it. For instance, applying brakes to a moving vehicle will bring it to a stop.

5. **Force Can Keep a Body at Rest**:
- If a force is applied to a body but is not sufficient to overcome the opposing forces (like friction), the body can remain at rest. For example, if you push a heavy box but do not apply enough force to move it, it will stay in place.

6. **Conclusion**:
- Since force can indeed move a body, stop a moving body, and keep a body at rest after acting on it, the correct answer to the question is "all of the above."

### Final Answer:
The correct option is **"all of the above."**

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