Question: What is the condition for a rolling object to be in pure rolling motion?

Options:

1. The object must not slide at all.
2. The object must have a constant velocity.
3. The object must have a constant acceleration.
4. The object must be on a flat surface.

Correct Answer: The object must not slide at all.

Solution:

Pure rolling motion occurs when the point of contact between the rolling object and the surface is at rest relative to the surface, meaning there is no sliding.