What is a fixed pulley ? State its one use.

Answer

**Step-by-Step Solution:**

1. **Definition of a Fixed Pulley**:
A fixed pulley is a type of pulley that has its axis of rotation fixed in a stationary position. This means that the pulley does not move up or down; it remains in a constant location while the rope or cable moves over it.

2. **Functionality of a Fixed Pulley**:
The primary function of a fixed pulley is to change the direction of the force applied. When you pull down on one side of the rope, the other side moves up, allowing for lifting of objects.

3. **Use of a Fixed Pulley**:
One common use of a fixed pulley is in lifting small loads, such as a water bucket from a well. The fixed position of the pulley allows the user to easily lift the bucket by pulling down on the rope.

4. **Conclusion**:
In summary, a fixed pulley is a stationary pulley that helps in lifting loads by changing the direction of the applied force, and it is commonly used for tasks like raising a water bucket from a well.

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