Work done by friction in pure rolling is always zero. Is this statement true or false?

Explanation

To determine whether the statement "Work done by friction in pure rolling is always zero" is true or false, we can analyze the situation step by step.

### Step-by-Step Solution:

1. **Understanding Pure Rolling**:
- In pure rolling motion, an object (like a sphere or a cylinder) rolls without slipping on a surface. This means that the point of contact between the object and the surface does not slide.

2. **Analyzing the Point of Contact**:
...