What is state of motion ?

Options

A. Position of rest
B. position of motion
C. both by the state of rest or motion
D. none of these

Explanation

### Step-by-Step Solution:

1. **Understanding State of Motion**:
- The term "state of motion" refers to the condition of an object in terms of its movement. It can either be at rest or in motion.

2. **State of Rest**:
- An object is said to be in a state of rest when it is not changing its position with respect to a reference point. In this case, the speed of the object is zero.

3. **State of Motion**:
- An object is in a state of motion when it is changing its position over time. This implies that the speed of the object is greater than zero. The motion can be uniform (constant speed) or non-uniform (changing speed).

4. **Combining States**:
- Therefore, the state of motion can be described in two ways:
- If the speed is zero, the object is at rest.
- If the speed is greater than zero, the object is in motion.

5. **Conclusion**:
- The state of motion can be defined as both the state of rest and the state of motion, depending on the speed of the object.

### Final Answer:
The state of motion refers to whether an object is at rest (speed = 0) or in motion (speed > 0).

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