How does a winding road makes it easier for vehicles to travel up a hill ?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Problem:**
- Vehicles often struggle to climb steep hills due to the high force required to overcome gravity. A winding road is designed to reduce this difficulty.

2. **Concept of Inclined Planes:**
- A winding road can be thought of as a series of inclined planes. An inclined plane is a flat surface that is tilted at an angle to the horizontal. It allows for easier movement of objects upwards by reducing the amount of force needed.

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