Question

What is pure rolling?

Answer 1

1. Pure rolling is motion of the round object without any slipping or skidding at the point of contact between two bodies.
2. The rolling motion is a combination of translational motion and rotational motion.
3. In pure rolling, the point of contact with the surface has zero velocity.
4. For example, let us consider a disc rolling without slipping on a level surface. The point of contact of the disc with the ground is at rest
5. The mathematical relation for pure rolling:
   $\mathrm{V}=\mathrm{\omega r}$
   where,
   $\mathrm{V}$ represents linear velocity
   $\mathrm{\omega }$ represents angular velocity
   $\mathrm{r}$ represents the radial distance of the circular path