# Rolling motion

A special case of rigid body motion is rolling without slipping on a stationary ground surface. This is defined by motion where the point of contact with the ground has zero velocity, so it matches the ground velocity and is not slipping.

Rolling is a type of motion that combines rotation and translation of that object with respect to a surface such that if ideal condition exist. There is no sliding when the instantaneous velocity of the rolling object in all the points without sliding .