What do you mean by central forces?

Explanation

### Step-by-Step Solution:

1. **Definition of Central Forces**: A central force is defined as a force that acts on a particle and points directly towards a fixed point in space, known as the center.

2. **Direction of the Force**: The direction of a central force is always directed towards the center, meaning that it is radial in nature. This implies that the force vector is aligned along the line connecting the particle to the center.

3. **Magnitude of the Force**: The magnitude of a central force depends solely on the distance between the particle and the center. This means that as the distance changes, the strength of the force also changes.

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