Difference b/n sliding and rolling friction?

1.	Difference b/n sliding and rolling friction?
Answer» Rolling Friction : It is caused by rolling motion of an object, less energy is dissipated to overcome rolling friction as only one point of object is contacts the surface. Magnitude of rolling friction is less than sliding friction.<br>sliding friction causes from sliding of a bodyas example - ice skatingwhererolling friction causes from rolling of a bodyas example - rollar skates

Discussion