Why does the horse rider falls falls forward when a horse at full gallop stops suddenly ?

Explanation

### Step-by-Step Solution:

1. **Understanding the Scenario**:
- A horse is galloping at high speed, and a rider is on top of the horse. Both the horse and the rider are moving together at the same velocity.

2. **Concept of Inertia**:
- Inertia is the property of an object to resist changes in its state of motion. An object in motion tends to stay in motion unless acted upon by an external force.

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